Explore the integration of web technologies within your app. Discuss building web-based apps, leveraging Safari functionalities, and integrating with web services.

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新しいWebViewにおいてが動作しない
現在新しいWebViewを使ってwebページを読み込むiPadプログラムを作成中ですが、読み込んだ後に部分のボタンをタップしても何も起こりません。safariで通常通りページを開いてボタンをタップするときちんと写真ライブラリ・カメラで撮るなどのポップアップが表示されます。下記がコードです。Webページは単純化のためにのみを配置しています。 struct SwiftUIWebView: View { @State private var webPage = WebPage() private let url = URL(string: "https://www.****.com/")! var body: some View { WebView(webPage) .onAppear { // URLを読み込む webPage.load(URLRequest(url: url)) } } } 何か追加のコードが必要なのでしょうか?
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200
Aug ’25
Unable to load CSS fonts from WKURLSchemeHandler in a https website
I am trying to cache fonts natively in a hybrid app, so that CSS hosted in an https website loaded in WKWebView through loadRequest can reference them like this for a performance boost: @font-face { font-family: 'MyFont'; src: url('my-assets://Gordita-bold-subset.woff') format('woff'); font-weight: normal; font-style: normal; } The problem happens when I register a WKURLSchemeHandler for my-assets. The handler never gets called and the Safari Web Insepctor shows this: [blocked] The page at https://www.x.com/ requested insecure content from my-assets://Gordita-bold-subset.woff. This content was blocked and must be served over HTTPS. Interestingly enough, if we try to serve content with <img src="my-assets://test.png" this restriction does not apply. Are there any workarounds other than using the private API WKProcessPool._registerURLSchemeAsSecure?
Topic: Safari & Web SubTopic: General
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66
Jun ’25
I have a Swift binary helper that works as a native messaging host for Chrome, Edge, and Firefox using stdin/stdout. I want to use the same binary for a Safari Web Extension as well.
Since Safari requires a macOS app as a container for Web Extensions, is there a way to establish native messaging directly from SafariWebExtensionHandler using stdin/stdout? Or does Safari enforce a different communication mechanism? I’d like to keep the same approach as other browsers. Any guidance on making this work would be appreciated!
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108
Mar ’25
Smart App Banner has changed background color
We have a Smart App Banner (including App Clip) on our website and have noticed today that the banner's background color has changed. It no longer has the default white background and blue button color, instead it has a background color that matches our page's background, and even the color of the button has changed. What's interesting is that we have not triggered this change at all. The colors seemingly changed by themselves. Looking at the Apple Documentation, no customization options are mentioned. Searching the web, the theme-color meta tag is mentioned in relation to this, however we haven't even included that tag on our page. What is triggering this color change then and how can we influence it?
Topic: Safari & Web SubTopic: General
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72
Jun ’25
iPhone Black Display Screen Using Video Tag
I build websites and my current build has seven videos on the first page built with the html 'video' tag. The page renders on all browsers and Android and on Safari on my mac but on my iPhone safari they appear black and then play correctly when clicked. This has changed since the last update.
Topic: Safari & Web SubTopic: General
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99
Mar ’25
Manage Safari 26 top bar transparency (Mac)
Hello from Leipzig, Germany! I noticed that when vertically scrolling in Safari 26 on my Mac, the content of the website I am currently working on is visible in the tab and URL bar with a liquid glass effect. I then looked at various other websites. Some websites have an opaque top bar. Some websites have a transparent top bar where content is visible when scrolling. On the Apple website, the top bar is opaque in light mode but transparent in dark mode. Unfortunately, I can't find a way to control this behavior. Has anyone found out more about this?
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232
Sep ’25
Videos keep refetched with loop
Hello there, For a video like this <video src="blob:safari-web-extension://***" autoplay="" loop="" style="position: absolute; top: 0px; left: 0px; width: 100%; height: 100%; object-fit: cover; z-index: -1;"></video>, no matter if its local or remote, blob or mp4 files, is constantly being reloaded (refetched? revalidated?) if the loop tag is added. I can confirm there is actual constant traffic from the server based on my server logs. I am running iOS/macOS 26.
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318
Jul ’25
PointerEvents on Safari on iPad with Apple Pencil Pro
Hi, I would like to share a finding and ask for a solution, if possible. This may be a potential bug with PointerMoveEvent on Safari on an iPad with Pencil Pro. I tested onPointerMove and onTouchMove in a <canvas> element in a React web app for freehand drawing using Mouse on a PC. Finger touch on iPad Apple pencil pro on iPad Finger touch on iPhone I was able to draw smooth curves in all cases except when using onPointerMove with Apple pencil pro on iPad. The curve drawn in this case looked like it was created using several straight-line segments. It seems like the sampling rate for PointerMoveEvent is lower than that of TouchMoveEvent on Safari I am not sure how to solve this problem or if it is an issue with Safari's interpretation of PointerEvents. Any input is greatly appreciated. Edit: It seems like https://developer.apple.com/forums/thread/689375 is related.
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314
Mar ’25
iOS26 Safari rendering bug even on latest beta 3
I am testing stuff on a website, and it worked well on any mobile browser till iOS18. Now that I am testing iOS26, even with the latest BETA (3) everything works smoothly on any other mobile browser but Safari. Previously I had the bug, which now has been patched, for status-bar, which was flickering too, but popover and page issue seems still there. I have persistent popover and ajax navigation, and both are rendering with bugs and fouc while view/page changes. Example: If I have an element which must stay on its place and its width is 100vw: while page changes it blinks, shrinks, flicker and jumps on rendering, while it simply must stay as is.. Animations and page transitions work smoothly on Chrome mobile (latest iOS 26 beta 3) , while breaking on Safari. I did open a feedback FB18328720, but seems no one caring. Any idea guys? ** Video of the bug (which is huge!) : ** https://youtube.com/shorts/rY3oxUwDd7w?feature=share Cheers
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374
Aug ’25
Detect whether the user is using Safari or Safari Technology Preview?
Hi, I’m trying to detect whether my Safari Web Extension is running in Safari or Safari Technology Preview. Is there a reliable way to do that? I can get the executable path of the parent process using proc_pidpath(). However, unlike Chrome or Firefox, Safari extensions run under /sbin/launchd as the parent process, not the responsible process (browser’s binary). In this scenario, I need the executable path of the actual browser process, but I haven’t found a way to get it. Also, Safari doesn’t implement the Web Extension API’s browser.runtime.getBrowserInfo(), unlike Firefox. I haven’t tested it yet, but I’m considering checking the user agent string, though I’m not sure how reliable that would be. Use Case Some users use my Safari extension as a web development tool and want to enable some features exclusively in Safari Technology Preview, while using other features only in standard Safari. If I could detect which browser is in use, I could provide the appropriate functionality for them.
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466
Jul ’25
declarativeNetRequest addOrReplaceParams adds a parameter when already present
I'm trying to use DNR to force safe search with Qwant search engine. Under certain circumstances (scenario described below) the search is performed with an API which contains the safe search level in a URL parameter. A typical query URL is https://api.qwant.com/v3/search/web?q=test&count=10&locale=fr_FR&offset=0&device=desktop&tgp=1&safesearch=0&displayed=true&llm=true. I want a DNR rule to force safesearch to be 2 (= strict) (from some javascript code) : { id: 1, priority: 1, action: { type: 'redirect', "redirect": { "transform": { "queryTransform": { "addOrReplaceParams": [{ "key": "safesearch", "value": "2" }] } } } }, condition: { "urlFilter": "api.qwant.com/v3/search", "resourceTypes": ["xmlhttprequest"] }, } When this rule is activated, I end up with a URL with the original safesearch parameter AND the forced one : https://api.qwant.com/v3/search/web?q=test&count=10&locale=fr_FR&offset=0&device=desktop&tgp=1&safesearch=0&displayed=true&llm=true&safesearch=2. To reproduce this request (with the previous DNR rule in place) : navigate to https://www.qwant.com search for some string (test in my case). This displays the list of results ; click the engine button at the top right to display the settings pane ; inspect network request performed by this page ; change the Adult filter in the list -> the results are automatically updated with the new settings. The web request shows URL with the 2 safesearch parameters. I already used addOrReplaceParams in 'standard' contexts (main_frame) and it works just fine. Any hint on what goes on ? Thank you.
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441
Sep ’25
"tel:02-xxxx-xxxx" alert
window.location.href = "tel:02-xxxx-xxxx" Can the development team modify the screen text? Or can the country code be erased? What are the reasons for continuing to be "on the phone" if the country code is automatically attached to the phone like this?
Topic: Safari & Web SubTopic: General
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801
Sep ’25
Safari Does Not Include topOrigin in WebAuthn clientDataJSON Despite crossOrigin: true
Hello, I’m working on a cross-origin WebAuthn implementation where a parent page embeds an iframe from a different origin to perform authentication. According to the WebAuthn Level 3 spec (Section 7.1.1), when crossOrigin is true, the clientDataJSON may include topOrigin—but Safari does not seem to populate this field. Observed Behavior: Chrome/Firefox: Include topOrigin in clientDataJSON when crossOrigin: true. Safari (macOS/iOS): Omits topOrigin even though crossOrigin is correctly set to true. Example clientDataJSON from Safari: { "type": "webauthn.get", "challenge": "...", "origin": "https://iframe-origin.example.com", "crossOrigin": true // Missing `topOrigin` (expected: parent origin) } Questions: Is this an intentional omission in Safari for privacy/security reasons? Are there specific requirements (e.g., HTTP headers, permissions policies) needed for Safari to expose topOrigin? Is there a known workaround to reliably obtain the top-level origin in cross-origin WebAuthn flows? System Info: Version 18.4 (20621.1.15.11.10) OS: Sequoia Version 18.4 (20621.1.15.11.10) Reproduction Steps: Parent page (https://parent.example.com) embeds an iframe (https://webauthn-rp.example.com). The iframe calls navigator.credentials.get() with a WebAuthn challenge. Safari returns clientDataJSON with crossOrigin: true but no topOrigin. Code Snippet (iframe): const credential = await navigator.credentials.get({ publicKey: { challenge: new Uint8Array(/* ... */), rpId: 'webauthn-rp.example.com', allowCredentials: [], hints: [], userVerification: "preferred", } }); console.log(JSON.parse(atob(credential.response.clientDataJSON))); Has anyone encountered this? Any insights would be greatly appreciated!
Topic: Safari & Web SubTopic: General
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110
May ’25
How do I update the list of valid redirect URLs for Sign In With Apple for Web?
I've been using Sign In with Apple for Web for the last six months, and it works well enough. Now, I'm updating the domain of the main application (we got the .com! yeah!) However, I can't find a way in the configuration UI to update the allowed redirect URLs for the application. I go to Identifiers -> My App -> Capabilities -> Sign In with Apple -> Edit button. It just allows me to edit whether this is a primary ID, or grouped ID, plus a callback URL (which I'm not currently using.)
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597
Sep ’25
Safari Extension: Cookie Header Missing in Background Fetch from Non-Default User Profile (Works in Default Profile)
When our Safari Web Extension makes a api request from its background script (registered via "scripts" in manifest.json, e.g., "background": { "scripts": ["js/background.bundle.js"] }) to our authenticated API endpoint (https://api-domain/user), the Cookie header is not included in the request. This occurs only when the extension is running within a non-default Safari User Profile. This causes our API to treat the user as unauthenticated. The exact same extension code, manifest, and API call work correctly (Cookie header is present and user is authenticated) when the extension is running in the Default Safari User Profile.
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168
May ’25