iOS 18 WKWebView images are not loading, no errors in older versions.
The example while loading HTML is as follows. A problem occurs when you pull an image from a url. To get a URL image you need a cookie or something. I add them too, but it doesn't work on iOS 18. I get the error "An error occurred trying to load the resource." and a blue question mark on the screen.
webView.configuration.websiteDataStore.httpCookieStore.setCookie(cookie)
<html>
<head>
<style>
body {
font-family: -apple-system;
margin: 0;
padding: 0;
text-align: center;
}
img {
width: 100%;
height: auto;
}
</style>
</head>
<body>
<h1>Resim Görüntüleme</h1>
<img src="https://xx.xxx.xx/example.png">
</body>
</html>
"""
HTML
RSS for tagHypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser.
Posts under HTML tag
31 Posts
Sort by:
Post
Replies
Boosts
Views
Activity
Hello everyone, is it possible to embed a USDZ file (Roomplan) in an HTML5 website and view it in 3D? Or do I need to convert the USDZ file into a GLTF file?
We as a team of engineers work on an app intended to visualize medical images. The type of situations where the app is used involves time critical decision making for acute clinical conditions. Stability of the app and performance are of almost importance and can directly help timely treatment action. The app we are developing uses Javascript. It has been observed the footprint of the app is lagging by 2 to 3 seconds in releasing memory while javascript is expecting the memory to be cleared. This is affecting the stability of our application and preventing us in delivering the right quality of application.
The problem specifically can be described as follows, using javascript create an array and then remove it and after removal of the array, create a new array of the same size immediately and again remove it. Because the memory is not released in time, if you repeat these steps a few times the app memory footprint will increase and that crashes the app.
To reproduce this scenario, we have created a simple app which creates an array with size of 100MB and checks the memory footprint using the Xcode instrument tool.
When we create an array of 100MB size, sometimes it shows the memory footprint peak of around 700MB-800MB and when we clear the array by assigning it with an empty array it releases the memory after 2-3 seconds.
Considering the critical nature of the app, I urge you to look into this and provide necessary support and resolution.
Please refer below sample code that will help to reproduce the mentioned scenario.
import UIKit
import WebKit
class ViewController: UIViewController, WKUIDelegate {
@IBOutlet var webView: WKWebView!
let myHTML = """
<!DOCTYPE html>
<html>
<head>
<style>
.button-style {
width: 400px;
height: 200px;
margin: 15px;
font-size: 50px;
}
</style>
</head>
<body>
<button type="button" class="button-style" onclick="loadDataInCache()">Load Data In Cache</button>
<button type="button" class="button-style" onclick="removeDataFromCache()">Clear Cache</button>
<script>
const size = 1024 * 1024 * 100;
let numberArray = [];
function loadDataInCache() {
numberArray = Array(size).fill(0);
}
function removeDataFromCache() {
numberArray = [];
}
</script>
</body>
</html>
"""
override func viewDidLoad() {
super.viewDidLoad()
// self.view.addSubview(webView)
webView.loadHTMLString(myHTML, baseURL: nil)
}
override func loadView() {
let webConfiguration = WKWebViewConfiguration()
webView = WKWebView(frame: .zero, configuration: webConfiguration)
webView.uiDelegate = self
view = webView
}
}
Flutter web view- I am downloading assets from server and using that assets to create html file to load on web view.
I downloaded them to the local document directory on the device. From there I can load the HTML files in a webview using the file:// schema, with the benefit that images, css etc. that are referenced in the HTML are loaded as well.
This works fine in Android (simulator and real device) as well as in an iOS simulator.
But on an iOS device the flutter webview fails to load assets , images & css files with a relative URL from local directory.
This is strange as the iOS simulator should behave the same in that case (as it is not really a hardware related issue).
Help me out from this issue.
I have a few pdfs that contains images/grayscale images that opened properly on my app with IOS 16.5 but since upgrading to 17.5, the app crashes with “A problem has repeatedly occured on...” this means the IOS itself is not able to handle the pdf otherwise we would get an error from our app.
Previously, while we got a warning in the console saying that the max canvas has been exceeded. The app did not crash.
Would it be possible to know what was the changes coming in version 17.0+ that could have caused this? And if so, should this be a bug that gets fixed? I’ve looked at the release note and can’t pinpoint which changes could have caused this new behaviour. This occurs on safari and chrome.
We are trying to retrieve merchant tokens from ApplePay. We used the javascript codes from Apple Pay demo site to request for a recurring payment from the frontend.
"recurringPaymentRequest": {
"paymentDescription": "A description of the recurring payment to display to the user in the payment sheet.",
"regularBilling": {
"label": "Recurring",
"amount": "4.99",
"paymentTiming": "recurring",
"recurringPaymentStartDate": "2023-08-11T11:20:32.369Z"
},
"trialBilling": {
"label": "7 Day Trial",
"amount": "0.00",
"paymentTiming": "recurring",
"recurringPaymentEndDate": "2023-08-11T11:20:32.369Z"
},
"billingAgreement": "A localized billing agreement displayed to the user in the payment sheet prior to the payment authorization.",
"managementURL": "https://applepaydemo.apple.com",
"tokenNotificationURL": "https://applepaydemo.apple.com"
}
Payment was successful, but merchantTokenIdentifier is not shown in the in decrypted ApplePay token, regardless of test card used. We tried Visa and MasterCard.
以下是包含完整日誌的回報範本：
Title: WKWebView File Upload Causes App Crash When Selecting Camera or Recording Options
Body:
Hello,
I am experiencing a critical issue with WKWebView in our iOS app when handling file uploads. We are using the following HTML element to allow users to capture images or videos, select from their photo library, or choose a file from the file system:
<input type="file" accept="image/*;capture=camera" id="cameraInput">
Issue Description:
When a user selects the camera or recording option, the app immediately crashes and returns to the WKWebView screen. This issue does not occur when selecting a file from the photo library or file system.
Logs:
Below are the relevant logs captured when the issue occurs:
Presenting view controller <_UIContextMenuActionsOnlyViewController: 0x1034349e0> from detached view controller <MailVwCtl: 0x103838800> is not supported, and may result in incorrect safe area insets and a corrupt root presentation. Make sure <MailVwCtl: 0x103838800> is in the view controller hierarchy before presenting from it. Will become a hard exception in a future release.
RotateN2:<MailVwCtl: 0x103838800>
RotateN2:<MailVwCtl: 0x103838800>
RotateN1:<Mail2000ViewController: 0x10350b780>
RotateN2:<Mail2000ViewController: 0x10350b780>
RotateN2:<MailVwCtl: 0x103838800>
RotateN2:<MailVwCtl: 0x103838800>
RotateN2:<Mail2000ViewController: 0x10350b780>
RotateN1:<Mail2000ViewController: 0x10350b780>
RotateN2:<Mail2000ViewController: 0x10350b780>
RotateN2:<Mail2000ViewController: 0x10350b780>
RotateN2:<Mail2000ViewController: 0x10350b780>
RotateN2:<Mail2000ViewController: 0x10350b780>
Unknown chipRevisionID (0xffffffff)
Attempted to change to mode Portrait with an unsupported device (BackWideDual). Auto device for both positions unsupported, returning Auto device for same position anyway (BackAuto).
Attempted to change to mode Portrait with an unsupported device (BackWideDual). Auto device for both positions unsupported, returning Auto device for same position anyway (BackAuto).
Attempted to change to mode Portrait with an unsupported device (BackAuto). Auto device for both positions unsupported, returning Auto device for same position anyway (BackAuto).
Attempted to change to mode Portrait with an unsupported device (BackWideDual). Auto device for both positions unsupported, returning Auto device for same position anyway (BackAuto).
RotateN2:<Mail2000ViewController: 0x10350b780>
RotateN2:<Mail2000ViewController: 0x10350b780>
RotateN2:<Mail2000ViewController: 0x10350b780>
WillDsAr:<MailVwCtl: 0x103838800>
RotateN1:<Mail2000ViewController: 0x10350b780>
RotateN2:<Mail2000ViewController: 0x10350b780>
DidDsAr:<MailVwCtl: 0x103838800>
<Mail2000ViewController: 0x10350b780>:VwWillAppear:1:x0
willAr:1,Fm:0,20,375,792-<MailVwCtl: 0x103838800>
willAr:1,Bd:0,0,375,792-<MailVwCtl: 0x103838800>
<MailVwCtl: 0x103838800>:VwDidAP:
VwDidAP:Bd:0,0,375,792-<MailVwCtl: 0x103838800>
VwDidAP:Fm:0,20,375,792-<MailVwCtl: 0x103838800>
VwDiDAP:SetFm:0,20,375,792-<MailVwCtl: 0x103838800>
ToolVwSetVwSize0:main,0,24,w=375,h=668,stepInd=0
ToolVwSetVwSize0:toobar_self,0,692,w=375,h=66
ToolVwSetVwSize:w=375,h=792
ToolVwSetVwSize1:main,0,0,w=375,h=727
ToolVwSetVwSize1:ToolBar,0,727,w=375,h=792
RotateN2:<Mail2000ViewController: 0x10350b780>
RotateN2:<Mail2000ViewController: 0x10350b780>
<Mail2000ViewController: 0x10350b780>:VwDidAppear:1:x0
M2KVC_DidAp0:0.000000 0.000000 375.000000 812.000000
Additional Context:
This issue is critical as it affects the user experience severely. Notably, we have a similar issue in our Android app using WebView. In that case, the file upload options for camera, recording, and file selection do not appear at all, restricting users to only upload files from the phone's storage.
We would like to inquire whether there have been recent changes to the APIs related to WKWebView and WebView or any known issues that could be causing this behavior. We are also concerned this might be a side effect of recent bug fixes or updates to WKWebView.
Additional Context:
This issue appears to be specific to iOS 17. We have tested the same functionality on devices running iOS versions below 17, and the camera and recording options work as expected without any crashes. This suggests that the issue may be introduced in iOS 17.
You can view a video demonstrating the issue at this link:
https://share.icloud.com/photos/001voevXriVXsEUmhzGsFBtSA
Environment:
iOS version: 17.6.1&17.5.1
Device: iPhone 15 Pro Max& iPhone 12
WKWebView version: [Your WKWebView version, if known]
App platform: iOS
Xcode version: 15.1
We appreciate any insights or guidance you can provide on this matter.
Thank you.
I wonder why that happens.
When opened on Mac.
Acceptance of files with the '.hwp' extension is applied. But not on ipad
I'd like to know why, where can I get information?
here is the code
<!DOCTYPE html>
<html>
<body>
<h1>The input accept attribute</h1>
<form action="/action_page.php">
<label for="img">Select file:</label>
<input type="file" accept=".pdf, .hwp">
</form>
</body>
</html>
If I set an input text box connected to a datalist-options, in order to suggest pre-coded values, this is what happens:
The text field shows properly.
When I start typing, one or more coincident "options" from the datalist are shown at the bottom of the available screen.
When one option is selected, the data contained in it is NOT transcript to the input field.
The same webtest works fine on Ipad mini w/ios 15.
Try this simple code, it doesn't work:
<label for="browser">Choose your browser from the list:</label>
<input list="browsers" name="browser" id="browser">
<datalist id="browsers">
<option value="Edge">
<option value="Firefox">
<option value="Chrome">
<option value="Opera">
<option value="Safari">
</datalist>
Hello,
I am looking for help with displaying Smart Banners on mobile devices. What is the preferred coding that can have Smart Banners appear on all devices? I am having an issue where an Smart Banner is not properly functioning as I would like it to. I would like the CTA (Call-To-Action) to be positioned on the top of a mobile screen. If a user has the mobile app already, it should read OPEN and opens into the app when it is clicked. If the user does not have the app, it should read GET and take a user to the mobile app store when it is clicked.
Wondering if anyone has had any luck with getting the geo-location while viewing a web page in mobile Safari on Watch OS? I've updated my phone and watch to the latest versions.
The code I'm using is standard Javascript for geolocation such as
navigator.geolocation.getCurrentPosition(showPosition, showPositionError);
Works fine when I run it in Safari on my laptop, but when I try to run the same thing on apple watch in embedded web browser, get an "Access Denied" error, which would imply that I have some permission set wrong either on the watch or the paired iPhone. I've messed with many of those settings and nothing seems to be working.
Wondering if it's stated somewhere that it simply won't work so I don't continue chasing my tail on something that was designed not to work.