Wkwebview javascript not working The odd thing is that And I loaded this page in WKWebView. ToString(); and return x but this somehow only works right if I call the Javascript function twice. After researching on how to do this task I Capture Javascript Errors From A WKWebView Using Message Handlers. It is not allowed, so does not work. I have also enabled javascript and third-parties cookies. 0), it looks like alert() and confirm() are not working when our web app is pinned to the home screen (aka using the meta tag apple-mobile-web-app-capable). The authentication flow with the Facebook JS library will first open a popup window allowing the user to input its credentials, allow the Note: You need to change the file scheme to a custom scheme in order to use WKURLSchemeHandler because it will not work with standard schemes like file, http, https. Running JavaScript in However, when using Safari on iOS, this doesn't work. e. Let's focus on Android. This is my swift code: I am working on an app that is using a WKWebView and I am trying to add an event listener when the user clicks on a button on the web page. Safari Preferences, Since return Task. The content itself is loaded from a remote source (via loadHTMLString), so I cannot change the css. js) that defines the various WebRTC classes and functions, and passes the calls to the WKWebView, for example: JavaScript not working in WKWebView in iOS. Create a JavaScript file (WebRTC. Hot Network Questions How do we determine our actual degree of belief? White perpetual check, where Black manages a check too? Time travelling paedo priest novel How to balance minisplits and oil furnace for winter heat? Voltage offset from op-amp inverting amplifier How to permute p A solution for macOS is discussed here that DOES work now (2021). cancel condition is met the redirect it not executed, and no new content is shown. I tried to set a variable in the handler: x = result. Unable to inject JS into WKWebView in Swift/Cocoa/NextStep / Push user selection on web page in WKWebView to Swift / Cocoa. [[WKWebView alloc] initWithFrame:CGRectZero configuration:configuration]; All calls to the property configuration are copied in a later stage of runtime (see docs and Header file). But I'm trying to add an . So, yes, it seems like you are correct in that it needs a parent view in most cases. js (the position and text label for the toggle in the bottom of the page). 1,817 1 1 gold badge 16 16 silver badges 35 35 bronze JavaScript function Default WKWebView click behavior; window. to pass a value back to the JS doesn't work here either. Javascript is disabled by default. Adding Javascript to WKWebView. I'm using Cordova framework, so I've develeped a plugin to set and get cookie to replace document. I am using the same approach for WKWebView, however WKWebview stuck at loading. That didn't work either. [iOS] How to set BaseUrl from WKWebview to use local file like image, css, javascript #4396. 83 iOS WKWebView not showing javascript alert() dialog WKWebView didFinish is not working Swift 4. This working fine in Android, Mac OS, Windows and other all except iOS. Step 1: Load an HTML File from a Local File Content renders fine using UIWebView. Vishnu Kumar. 24. WKWebView won't open external links. About; Products First problem is that my applications work mainly with javascript, and document. If using an iPhone or iPad, make sure the device is connected to your computer and recognized as a development device. UIWebview reload doesn't work. – Mike Keskinov iFrame interactions are not working in WKWebView. All we need is to inject a cookie. The html body is loaded, but no script executed, even a simple alert. Follow answered Mar 2, 2015 at Swift WKWebView Loading local file not working on a device. I am unable to get javascript to execute when pointing to a local html file that has the javascript embedded within it. – Art. Here is my code: import UIKit import WebKit class ViewController: UIViewController { @IBOutlet weak var webView: WKWebView! override func viewWillAppear(_ animated: Bool) { let url = URL(string: "https://www. They don't work. 529863+0100 testRedirectWebView[32686:38145275] [Sandbox] Could not enable Mach bootstrap, errno = 1. I try it directly from my device not from the emulator. Related questions. EvaluateJavascript(js)); on iOS side is not working anymore I dont know how to return a value back to my View Model. Any WKWebView video pausing not working for all the websites. Note that this string needs to be a single line, as JavaScript doesn't support multiline strings. "],["This guide But when trying to use getusermedia in any inapp-browser (ex. regular alert() from javascript or I should pass some different instructions in js to trigger this native alert? so my question is: 1) how this should work when implemented 2) what am I missing in implementation func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) { webView. But in the WKWebView running in simulator or device content of the iframe is not shown. Alert, confirm, and prompt not working after using History API on Safari, Now I have executed some javascript in A. com")! I'm loading two JS files into a WKWebView via loadHTMLstring method. Version 2 doesn't work for me with WKWebView on 2024-02-21 15:48:06. I have tried using ES6 syntax and ES5 syntax they both cause the same problem. display = 'none'", ); I have already tried everything in order to perform my own JS on the webview page, JS is not performed in any way. Closed kritsadadechawantana opened this issue Nov 14, 2018 · 2 comments Closed [iOS] How to set BaseUrl from WKWebview to use local file like image, css, javascript #4396. any calls to route navigate do not work. com, and on there I have a test link which is supposed to open up a JS alert, but I can't get it to display on the device, it only works if I view Note - I don't have xamarin experience but I know how "window. WKWebView doesn't run JavaScript when on background. Hot Network Questions How did the Dutch Republic get sufficient timber to build its navies? To “digitize” means to turn something into a digital format that was previously not digital. The short answer is, let javascript handle it, and if need be, make a call back to the app from javascript once a selection has been made from the dialog. In this case: the ViewController retains the webView, and the webView strongly retains the view controller, so there is indeed a reference cycle that needs breaking. Example (JavaScript) at all to execute the code you're trying to run in iOS-world, your JavaScript will not be waiting Thanks Alessandro - passing a string was working for me sometimes, not on the sim though - passing an array works - thanks! – Nostradamus. This can be any JavaScript you want, which effectively means you can dig I noticed that sometimes when the webview is moved to background (have another view controller on top), it stops JavaScript functions execution, and executes them only when returning back WKWebView is what we are going to use in the app, and we are going to work on it. navigate calls. When i put a breakpoint in each conditional statement and run it, location. SWIFT WKWebView adding cookie does not work with iOS 18 beta Safari & Web General WebKit Feedback Assistant Safari Developer Tools Web Inspector You’re now watching this thread. js (which is the library) and darkmode-options. If you present this new WKWebView on screen, it will load with the correct content. refreshWebPage. Improve this answer. You’re now watching this thread. I had to use the webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) function to execute the Javascript, rather than having the reference to it in the HTML file. WKWebView - Javascript Confirm and Alert not working. GPS location. Hot Network Questions As an adverb, which word’s more idiomatic: “clear” or “clearly”? Using a lambda inside foreach() Bash extglob with ignored pattern How far Initially website load completely. route. CSS not loading in WKWebView. tldr; the /tmp folder solution will not work on 8. try only this code in one demo. My hack was to include the JSON content as another JavaScript object that is included in the DOM. This class sets all the properties of web view and there is a call back function which will get called when javascript function gets called which will be stored locally in the project. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. . WKWebView does not load local html files. It return empty cookie array in the callback closure. WKWebView is not working with JavaScript Classes. messageHandlers. 8. But it still doesn't work. I've been trying to find some answers about my problem but I'm not sure how to implement it. path and . 6. 9. It works well on iOS 13/12/11 simulator, but fails on iOS 14 simulator. This works perfectly on iOS 12, but when I debug for iOS 9 it doesn't work at all. 1. url. Under iOS (currently 7. In your case you were lucky that values are not dynamic. 3. So I tried debugging on the web code. I am trying to load content from a website using WKWebView from a certain website but I end up with a white page. href is executed through a conditional statement, which satisfies both conditions. My app Frax has long used a mechanism where a local webpage calls out to web-hosted content. 0. Learn more about Collectives Teams. WKWebView - not loading a page from You’re now watching this thread. About; Products For some reason, Everything started working after adding the code after evaluating that javascript. 0 by implementing two methods of WKUIDelegate, which you already registered yourself as for your webView. 2024-02-21 15:48:07. Explore Teams. I am still Now I want to call handleLogin() from native code inside my WKWebview. Load 7 more related questions Show fewer related questions Sorted by: Reset to default Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company @Benzi Heler answer is great, but it uses jQuery which seems like is not working in WKWebView anymore, If you don't have control over the content you can still do this by injecting your own JavaScript via a WKUserScript to track ajax requests and send back messages using the method stated above. width, . Commented Sep 10, 2020 at 7:30. WriteLine() the handler results but I am not able to return it – It works flawlessly on Safari and I've noticed that it works on the deprecated webview (UIWebview) but I've been trying to make it work on WKWebView. Update 08. 17 WKWebView - Javascript Confirm and Alert not working. But It is not working when I load the same page in WKWebView. Setting the url seems to make problem with WKWebView. But above that the pan gesture is not correctly invoked in versions above iOS 14(Not registering minimum points needed for calculating angle to perform action). Updating the value of var in javascript is rather dangerous in my opinion. Click again to stop watching or visit your profile to manage watched threads and notifications. getElementsByTagName ('main') [0] . It’s common for native iOS apps to include web components, particularly to display web content. regular alert() from javascript or I should pass some different instructions in js to trigger this native alert? so my question is: 1) how this should work when implemented 2) what am I missing in implementation It seems that since WKWebView runs javascript off-process that it will pause any javascript that is considered idle to save resources (<-IMO). But full If I set the content of DTNorwegian. Swift WKWebView and Javascript Interaction. This solution IS NOT WORKING anymore. Yes. style. I have three views, when user clicks on a list, he goes to second view, where click button is rendered. JavaScript alert() not working in embedded WebView. loadHTMLString method. Ask Question Asked 7 years, 5 months ago. Collectives™ on Stack Overflow I need my swift class to interact with the html and javascript in a wkwebview that it references, in Script message handlers are strongly retained by the WKWebView, so it's sometimes necessary to explicitly remove them in a deinit or similar. I am trying to load javascript in webView (WKwebView) its working fine in simulator but does not work on the device. 529734+0100 testRedirectWebView[32686:38145275] [Sandbox] Could not enable Mach bootstrap, errno = 1. We referenced this post. If I present this in a UIWebView or WKWebView, can I make the WebView act more like desktop Safari, so that I can drag the elements around? I've discovered I can stop various iOS actions by sending the webview some javascript: The problem: I am trying to resize the text / content that is being displayed in a WKWebView. This approach has been You can get the Javascript to work by adding the WKWebView to the view hierarchy. Safari Preferences, Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Since return Task. uiDelegate = self Second, implement this protocol method of UIDelegate. Share. If you are also struggling with "why my javascript is not working in WKWebView", below is a neat way to figure out why: 1. What to call changing one So since we are not going to use UIWebView anymore, I just said it for more info. autoresizingMask = [. – Khushbu. I have checked the redirection url from decidePolicyFor navigationAction delegate method and they are same as UIWebview. href is all executed, but usually when you run the app, only the last Hi i want to ask so i have a problem in WKWebView IOS So i want to post message to JS like this window. Provide details and share your research! But avoid . I am not aware if this is intended behaviour or a bug (radar, anyone?) Before loadFileURL:allowingReadAccessToURL: was introduced in iOS 9, there was a workaround to load a local HTML file by copying it to tmp/www. Yeah I already did it on the day I report this issues, the dialog even looks nicer and works on all platform I tested (MacOS, Windows and Linux) JavaScript not working in WKWebView in iOS. I'm definitely no swift expert so I apologize if the answer is easy. Collectives™ on Stack Overflow Swift WKWebView interface with javascript is not run. 12), the default load operation for local files has moved from Bundle. as you did it works fine. Thanks for the help Unlike with UIWebView and previous versions of WKWebView (iOS 10 & macOS 10. So inside my: func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) { I've a couple of . For this example the demo HTML is saved in a file in the Xcode project. I a How do i execute javascript function at runtime, the function to load the chat window does not get executed func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) { let javasc Hi @GustavoVollbrecht. Surprisingly, files there can then be access from inside the WKWebView – The HTML is loaded from an API so I use the WKWebView. postMessageListener. Thank you in advance for any help, iFrame interactions are not working in WKWebView. 02. maybe more don't know – Art. cookie Javascript Injection Not working on WKWebview on Device, but is working on Simulator. Find centralized, trusted content and collaborate around the technologies you use most. 54. None of that is getting executed. In the Safari menu, Develop -> simulator, connect your iPhone simulator. stringify({data})) In this particular case, the button click is processed by the client’s side JavaScript code. What have I done so far: Debugging webpage with Safari Web Inspector, Console does not display any message relevant to this issue; XCode Debugger does not show any message relevant to this issue but I'm not sure how should it work when implemented - should this just add extension to WKWebView for triggering e. It's WKWebView can load any HTML stored in your app bundle using its loadFileURL() method. Modified 8 years, 3 months ago. webkit. Also I've added 2 javascript files in Xcode: darkmode. I was having trouble getting this solution to work on my test device and eventually cloned shazron's repo to give it a try. 2. I think I need to set up another WKWebView object but it's not clear how I chain it to the first one, or what event handler I would use. Is there a way to use JavaScript classes in a local html file in This approach at least ensures the javascript runs while the app is active and doesn't effect the UI. Yes the code is from Apple website, but don't know why i cannot get it to work. To your forms page? How about messaging-center? – nevermore. open(url, "_blank") Link not handled by the web view. 0 How can i get the contents of javascript alert message on UIWebView? 83 alert() not working in WKWebview evaluateJavaScript() 1 WKWebView javascript alert, prompt, confirm won't JavaScript not working in WKWebView in iOS. JavaScript not working in In my IOS Application I've created a WKWebview of a website that I'm not owning myself. With the help of this code, injection is possible, and I will explain each step: This code I am using WKWebView to open up example. 2. It seems that code inside a WKWebView cannot access local files. Commented Oct 13, 2018 at 4:11. Collectives™ on Stack Overflow. WKWebView Won't Load (NSViewController, OS X) 16. e Chrome on PC, Android and Mac; Safari and Firefox. Open Safari Preferences and ensure "Show Develop menu in menu bar" is enabled. I am using WKWebView on my app where user can login, but I have an issue. The problem is when contentEditable get focused for text editing then click event is not working anymore. JavaScript is working as expected, but when I try to use a class it makes the WebView just appear blank. Commented May 11, 2018 at 11:57. 4. JavaScript not working in WKWebView in iOS. evaluateJavascript that add data to textfields, removes elements on the website etc. open()" js works in WKWebView with native code so I hope this answer will help you connect the missing dots. html, and it has caused another page to load, B. First, set UIDelegate where you configure your web view. This works fine, but pressing on links (e. 9 Script message handler not working. However, communicating with a web view is Is synchronous communication between JavaScript and Swift/Obj-C native code possible using the WKWebView? These are the approaches I have tried and have failed. stringify({data}))" I am implementing wkwebview in an app that was using UIWebView. This problem is solely in WKWebView. Now I want to inject a javascript command in B. Ask Question Asked 9 years, 1 month ago. Another interesting thing is it works on simulator not on device. I need to inject js to handle close button in webpage, but it works only in inital page, If I go to another page in website, it just not handling. ok it works with printing in console or write in a textfield, but doesn't work with alert or window. I have a solution but with iOS 9. WKWebView get Javascript Errors. Ideally, you should pass the values using a javascript function that would take the new values as parameters, for example:. Commented May 11, 2018 at 11:58 WKWebView not displaying website (Swift 4, iOS 11, Xcode 9. In this tutorial, I will show you how to do it. I noticed when I use a PUT request the form body gets added to the url parameters. 0. S. This guide shows you how to provide information about how to configure a WKWebView object. on an [mailto:] button) doesn't work because it can't open anything! Does anybody have a solution for this? I have read a lot about solving this, but I don't know where to start. postMessage event. WriteLine() the handler results but I am not able to return it – I'm trying to catch every onClick event in WKWebView. FromResult(this. It not working anymore. It currently is NOT working on iOS but I am working on that. let userController = WKUserContentController() let channelName = "postMessage" let wrapperSource = The below code is working perfectly for versions below iOS 14. getusermedia object not found. path to Bundle. What actually I Ask questions, find answers and collaborate at work with Stack Overflow for Teams. To get the communication working, i am using the evaluateJavaScript() method to send data from native to webview. Facebook browser, twitter browser) which are built using WKWebview i get . I found a user having a similar issue on twitter: WKWebView - Javascript Confirm and Alert not working. Collectives™ on Stack Overflow In iOS 13 and below, how can WKWebView call an async Javascript function (i. It suppose to do. Viewed 1k times Part of Mobile Development Collective 2 My Goal is to send data from iOS device to WkWebView. Stack Overflow. Flutter: passing data to WebView. loadRequest() , the page load is happening . In that delegate method you should create a new WKWebView with the WKWebViewConfiguration that is given to you. The scripts are embedded in the application so no HTTP call is being executed. 3) 2. iOS Swift 5: How to execute a js file in a Swift: Injecting JS & CSS to WKWebView doesn't work. Do I need to run a local server? GCDWebserver. stringify({data})) but nothing happened in JS. WKWebView loading html code instead of contents (iOS) 0. First, make an object conform to the protocol – it might be your view controller, but it doesn’t need to be. I was on vacation and hoping I might get a few more answers. Swift WKWebView interface with javascript is not run. let js = getMyJavaScript() let script = WKUserScript(source: js, injectionTime: . That JavaScript conflict with native WKWebView handlers. However, if you need to enable javascript for WKWebView, here is how to do it: iOS 14 and above: In our app we are dynamically creating a form with input fields and relying on evaluateJavaScript() function to submit the form and load the url in the decision handler. display = 'none' but it fails _webController. height] and wrapperView. Yes, take a look at cordova-plugin-iosrtc and cordova-plugin-wkwebview-engine. Some WKWebView links not clickable . On the code, each location. WKWebView javascript alert, prompt, confirm won't work. WebView load external HTML with linked JS File - Swift. 0 router navigation not working on iOS WKWebView. evaluateJavaScript waits for main thread released, but it never happens because it locked in the loop. Is there any way to get the JavaScript errors from the WebView? I mean the following errors and possible warnings? I am running JS code with the following extension: extension WKWebView { func It seems that since WKWebView runs javascript off-process that it will pause any javascript that is considered idle to save resources (<-IMO). OK, finally figured out why it is not working. apple. But when I click on any link inside website it doesn't work. Skip to main content. Only one possible way is asynchronous way using WKUserContentController. Frontend/JavaScript developer use navigator. 2018: finally added a GitHub sample project, which also includes a local JavaScript file. But! A little late to answer, but I ran across the same problem lately and couldn't find any satisfying answer. So i want to post message to JS like this . That mechanism is being used by Cordova to define a new JS to native bridge when the Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company It may not be an ideal method but depending on your use-case, you can just reload the WKWebView after you've infected the user script: NSString *scriptSource = @"alert('WKWebView JS Call!')"; if from JS it's not used webkit. If you check this in safari, it is working. This is documented in the WKUIDelegate documentation, although it is not very explicit that this is called as a result of window. Is anything wrong with web site? In Swift, it is possible to inject a JavaScript code into a WKWebView and execute it from your app. evaluateJavaScript("testFunct()") } try calling the JS method from didFinish navigation method once the webView is loaded. the file: protocol. So I can confirm that this setup, in principle, is working as you originally expected it to work. On the webpage are html5 video elements which the user should be able to play in fullscreen. The javascript is stripped to do a simple alert and load a basic google map. WKWebView is not loading url. I was able to work around this using the following code: I have embedded a button that calls a javascript function to post a message to my code. Modified 7 years, 5 months ago. WKWebView can not load the local HTML with the local front. 5% of light be able to protect someone from Night If it is not working in safari and chrome browser then its the issue with the website. How to run javascript in a webview from Swift. websiteDataStore. What have I done so far: Debugging webpage with Safari Web Inspector, Console does not display any message relevant to this issue; XCode Debugger does not show any message relevant to this issue I am using evaluateJavascript with js code document. iOS WKWebView doesn't load http web content. Register custom scheme with WKWebView Angular 2. In my example it was easy though the interface but its not working anymore. The website is working only with JavaScript so I cannot handle anything in: func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) How can I do this? WkWebView JavaScript script not working. postMessage(JSON. Ask Question Asked 8 years, 3 months ago. Thanks @nacho4d. iOS WKWebView not showing javascript alert() dialog. WKWebView callback without WKScriptMessage. Whether you’re just starting out, looking to land your first job, or aiming to become a lead developer, this program offers everything you need to level up – This class has web view loading logic. WKWebview does not run javascript(XML HTTP request) with out adding a parent view. I am using sessions to keep user logged in Javascript on my website, but the sessions are not working on WKWebView. Hot Network Questions As an adverb, which word’s more idiomatic: “clear” or “clearly”? Using a lambda inside foreach() Bash extglob with ignored pattern How far away is a number from being a power? Maximum density of sum-free sets with but I'm not sure how should it work when implemented - should this just add extension to WKWebView for triggering e. WKWebview's javascript call returns nil. html. Loading the same html file to a UIWebView is working correctly. I'm trying to build an osx application with an integrated webkit webview to display a web page. Using localHTTPServer to serve the html, css and images. My problem is that the web-content I host in the WebView is heavily Learn how to inject JavaScript into the iOS web view (WKWebView) to customize the HTML styling to fit the look and feel of your apps. I can Console. GO FURTHER, FASTER Unleash your full potential as a Swift developer with the all-new Swift Career Accelerator: the most comprehensive, career-transforming learning resource ever created for iOS development. I do not know very well web development, but it seems to me that the problem with JavaScript of the money. If you make it work in all browsers it will work in web view too. I can't find a way to simulate a click/tap with WKWebView and Java Script. Thank you for your contribution but unfortunately we are still unable to catch the window. 0 but will on 8. evaluateJavascript ("document. Viewed 533 times Part of Mobile Development Collective 4 We need to set a cookie locally to the application that applies to our webview. NET interactions in a WebView on both Android and iOS. geolocation API by standard way without taking care that it is On iOS, JS function is not called; Yes it is, it just doesn't do anything visible: It doesn't alert because alert() isn't implemented for iOS; It doesn't log to the console because console logging doesn't do anything by default in WKWebView; It returns an empty string because that's what the function is written to do in practice. Any help in that is highly appreciated, also if anyone know when Apple will fix such problem or what work around could be implemented to get it working? Update We use the same pattern (as far as I can see) in our apps, and for us, if the . geolocation API with custom one with 3 benefits:. – user132397. The message handler doesn't get called. Cannot read property 'messageHandlers' of undefined. WKWebView is what we are going to use in the app, and we are going to work on it. Commented May 15, 2018 at 12:56. I know that . Ask questions, find answers and collaborate at work with Stack Overflow for Teams. min. httpCookieStore. webkit. It is not usable for example to get some value which changes over time e. The new JavaScript script simply assigns the JSON data as a string into a global variable. open(). So basically what you´re doing with your first three lines of code is to set the WKUserScript to a WKWebViewConfiguration which is never used - and therefore not The problem is when I try to load content to the iframe in the page it won't load. Use wkwebview back reload. 10. com site. 15. open. Hope this helps! EDIT. Follow these steps to optimize the click behavior in your WKWebView instance: ["`WKWebView` in iOS apps requires optimization for ad clicks and other web interactions to ensure proper functionality and user experience. 17. My code looks like this: When submitted, issues a GET request, regardless of the method specified. I am working on a project with WKWebView and I have the html loading from the local project. JavaScript’s alerts are blocking, which means JavaScript execution will Qualification: this test will work if you are using the official Cordova WKWebView plugin to build your webview app, because that plugin does initialize the addScriptMessageHandler method, as noted by @hexalys in the comments to this post. The issue that I'm experiencing is that none of the Javascript is executed for objects that are anywhere below the Using evaluateJavaScript() you can run any JavaScript in a WKWebView and read the result in Swift. Exposing JS function calls out of WebView JavaScript not executed in WKWebView. Javascript Injection Not working on WKWebview on Device, but is working on Simulator. WKWebView not loading webpage - In the new WKWebView this method there isn't, and i not found something . But it not work. The user credentials are not saved so the user has to login every time he starts the app. Alert Example Workaround: use a message dialog but it would be good to know what alert is doing in the dev console (my guess is it's disabled by WkWebkit by default. evaluateJavascript (Or other) that will I am migrating our app from Xamarin to MAUI, and I am a bit struggling with migrating the code that handles JS/. So, calling webview when page loads will not work, because the button element is not rendered in my first view Unfortunately it is not possible to call swift method from javascript synchronously to get value. json file. Headless webview. let config = WKWebViewConfiguration() _webView = We have been having some performance problems with WebView and WKWebView looks much better in that regard. Hot Network Questions Is there a way to confirm your Alipay works before arriving in China? Capture Javascript Errors From A WKWebView Using Message Handlers. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I've verified this is not a backend issue as the same code works in other browsers and platforms i. The callback now called from the main Thread and if you lock the main thread in the while loop (like in this solution), the callback handler will be never called. The website is working only with JavaScript so I cannot handle anything in: func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) How can I do this? Hi i want to ask so i have a problem in WKWebView IOS . It either selects the element or pops up a sheet. In order to run Javascript, you must enable it through WKPreferences. iOS: JavaScript can't run on WKWebView. Important: To properly set up and optimize WKWebView, apply all of the following recommendations to each WKWebView WKWebView would not load the data. You can hide the web view by giving it a zero rect. 5+ (and iOS 18 beta) this has recently stopped working. – Shrikant Chidgopkar. cookie has stopped working. Add a comment | WKWebView javascript alert, prompt, confirm won't work. It's also not work in Safari and Chrome browser of iOS. Try Teams for free Explore Teams. Hot Network Questions A roulette wheel? An AC Milan kit? Darth Maul's face? Deutsche Bahn Berlin: can This approach worked well in UIWebview so far, but in WKWebview is not working as expected. In order for WkWebView to work with local content, we need to : 1/ Set the private I have build a Swift iOS app with the only purpose to display a website with the help of WKWebView. Viewed 2k times Part of Mobile Development Collective javascript; ios; objective-c; video; html5-video; Share. I have searched similar questions on this issue on stackoverflow and what I came up with is that Apple does not execute js in a local html file, and in order to execute js I am required to use a local webserver using Because I did not find solution how to avoid this stupid duplicate permission request I created swift class NavigatorGeolocation. There are no errors being thrown. The idea behind the plugin is as follows: 1. and this doesn’t take much work thanks to the WKNavigationDelegate protocol. However, the first page loads okay, and it references content within a single JavaScript file. Asking for help, clarification, or responding to other answers. url are entirely different and have both Thanks! For everyone else who has forgotten how to do this: Add a wrapper view with constraints, add the WKWebView as the wrapper’s subview without constraints, set the WKWebView’s frame to match the wrapper view’s bounds, then set the webView. Ask Question Asked 8 years, 1 month ago. – Muhammad Zohaib Ehsan. I'm loading a local HTML & Javascript file into my WKWebView. When I am load a embedded html content using UIWebview UIWebView. window. webView(_:decidePolicyFor:decisionHandler:) is not being called at all. Modified 1 year ago. autoresizesSubviews = true – If your iOS app utilizes WKWebView to display web content, it's recommended to configure it so that content can be optimally monetized with ads. main. How to call the swift view controller from javascript click action? Related. 2024-02-21 15:48:06. Open Safari on your desktop, Preferences -> Advanced, enable "show developer menu in menu bar" 2. 385311+0100 testRedirectWebView[32686:38145275] [Security] This I'm not sure where you're trying to handle the action, whether it is in javascript or with C# in the app, so I'll try to address both. postMessage("status":"ok") then you can wrap it at WKUserContentController like below so you will get call back from the method. otherwise in android "window. Similarly, loadFileURL has also become the default function to load local resources in WKWebView. Iframe is working when running the site in desktop web browser from any server (including server running in the iOS simulator or device). Commented Sep 10, 2020 at Same problem here. This includes routerlink and this. For My Instance, I test getting cookies just after setting cookies in WKWebview. It stop working after navigation to some other page, even if I navigate back. Is there any way we can execute javascript on wkwebview without adding parent to the webview. Although it is a good solution, it gives the page a slight delay to execute all of the Javascript things. configuration. In iOS 17. Teams. S Vishnu Kumar. LoadUrl("javascript:(handleLogin(placeholder))"); In iOS I already tried it inside public override async void DidFinishNavigation(WKWebView webView, WKNavigation navigation) with: WKWebView is not working with JavaScript Classes. If you’ve opted in to email or web notifications, you’ll be notified when there’s activity. js as the value for "language", it will work. 26. In my case, long short story, when the webview fail, the user can change screen (and this will totally unmount the component with the webview), then come back : the second time, the js works properly. The same iFrames works on UIWebView and Safari. Idle includes not having a parent or the app/device is inactive. Is there anything I am missing when implementing WKWebView? All the other functionalities are working, only issue is with language url setting. g. I've tried a couple of different ways to make this work for iOS 9 but it seems that nothing is working. When running on the The thing is, the html and css code inside the file are successfully displayed inside the webView, but the javaScript however, is not rendered at all. cnn. I am Skip to main content. WKWebView JavaScript communication on The web app is dynamic, each html element is created by javascript. Can't load local JS file Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Although when loading the same content using WKWebview page is not loading properly. If you need to display it later you can remove the webView from the keyWindow after render and reset the frame. Follow asked Jul 17, 2015 at 10:40. Its the first time I am using WKWebView. I'm trying to catch every onClick event in WKWebView. one that returns a promise)? Ask In my SwiftUI App, i used a WKWebView to update some html tags from native side, using SwiftUI TextFields. Let’s start with some basics. Feel free to fork & star! Version 1 is working with WKWebView on macOS. The button as no id so I am working with the class. Problem Statement: When we try to execute some javascript in wkwebview with help of "evaluateJavaScript" method in background, sometimes javascript stopped executing in between, but if we keep webview in foreground, then no issues, same javascript code Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. The script could have been already executed at the time, not even mentioning other Javascript quirks with var. Hot Network Questions Terminated employee will not help the company locate its truck Can't redeem my denied-boarding vouchers Would a material that could absorb 99. It is the ONLY solution I know of that will print ALL on and offscreen content of a WKWebView. I already tried several ways, on Android it can easily be done with: view. It seems that the transitions between the site pages and their loading is carried out with help of JavaScript. Q&A for work Disable JavaScript in WKWebView - Preferences not saving in WKWebView. Commented Mar 7, 2019 at 5:17. See this stackoverflow post and the answer marked as correct: iOS WKWebView not showing javascript alert() dialog. The aim of this class is to override native JavaScript's navigator. I tried: request. I was able to work around this using the following code: JavaScript not working in WKWebView in iOS. Where is the proper place for re-injecting Javascript (but not the html) in SwiftUI? Related. httpShouldHandleCookies = true but it is not working. (in viewDidLoad in your case) webView. atDocumentEnd, forMainFrameOnly: false) Step 4: Inject JavaScript into an HTML Document After creating the WKUserScript object, you can add it to the WKWebView ‘s configuration using the userContentController . cwblc juyjha ikdpvt uvonfz mhgff zaaq hjx krnpy jndoul cvs