We are currently implementing the payment flow, and for handling payment details — including card entry and validation — we are utilizing a WKWebView. The webview securely loads the payment provider’s page, ensuring sensitive information such as card numbers are entered and validated directly within the web context.
I’d like to clarify that this change has not yet been released to Production. As part of a feature enhancement to our existing payment flow, we are transitioning to a new payment vendor, SnapPay.
While trying to load the SnapPay URL embedded within an iFrame in our iOS app, I observed the following error in the Xcode console. While this error may be generic, I wanted to highlight it:
825a18 - [pageProxyID=7, webPageID=8, PID=67346] WebPageProxy::didFailLoadForFrame: frameID=24, isMainFrame=0, domain=NSURLErrorDomain, code=-999
Upon investigating, we compared the headers from our existing payment URL and SnapPay's URL, and found that SnapPay includes the following Content-Security-Policy (CSP) header:
Content-Security-Policy: frame-ancestors ...
"Content-Security-Policy" value="default-src 'self'; script-src 'self' https://hcaptcha.com https://.hcaptcha.com https://code.jquery.com https://www.gstatic.com https://code.jquery.com/jquery-3.3.1.min.js https://test.lightbox.cardx.com/v1/lightbox.min.js https://www.ssa.gov/accessibility/andi/ https://c.evidon.com 'unsafe-inline' 'unsafe-eval'; style-src 'self' https://hcaptcha.com https://.hcaptcha.com https://fonts.googleapis.com/css https://stage.snappayglobal.com/Resource/ https://www.ssa.gov/accessibility/andi/andi.css 'unsafe-inline'; img-src 'self' data: https:; font-src 'self' *.googleapis.com *.gstatic.com ; connect-src 'self' https://demo1.cditechnology.com https:; form-action https://hcaptcha.com https: 'self' *.ipg-online.com secure.bluepay.com https://test.api.lightbox.cardx.com https://3ds-acs.test.modirum.com/ https://demo1.cditechnology.com/; frame-ancestors https://snappaydirect-perf.fiserv.com 'self' file: https: http; frame-src .snappayglobal.com 'self' https://hcaptcha.com https://.hcaptcha.com https: https://www.google.com .ipg-online.com secure.bluepay.com https://.cardconnect.com https://test.api.lightbox.cardx.com/ https://test.lightbox.cardx.com https://paywithcardx.com/payment/auth.cgi securepayments.cardpointe.com *.cardpointe.com https://3ds-acs.test.modirum.com/ https://www.yokohamatire.com http://uat1-txt.ad.portal.texas.gov https://uat1-txt.ad.portal.texas.gov "
After multiple working sessions with the SnapPay team, we were able to confirm that when they disable CSP or remove the frame-ancestors directive, the iFrame loads successfully within our app. However, SnapPay cannot change on their CSP.
To enable the iFrame to load in the iOS app, we added the following line of code:
webView.configuration.preferences.setValue(true, forKey: "allowFileAccessFromFileURLs").
This resolved the issue with loading the iFrame. Note: the file being loaded is a local .html file,.
Before submitting this update to the App Store, I’d like to confirm whether this usage of allowFileAccessFromFileURLs is acceptable for App Store review.
I wanted to confirm that with this change is there a security concern for WKWebview?
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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I am encountering an issue where we are unable to run or launch Safari Driver in our automation tests using macOS. When attempting to run safaridriver -p 8888 from the terminal, we receive the following error message:
ERROR: safaridriver could not launch because it is not configured correctly or you need to authenticate. Re-run safaridriver(1) and pass the '--enable' flag to configure and/or authenticate.
For more information, consult the safaridriver(1) man page.
Despite running sudo safaridriver --enable as an administrator (even as root), the issue persists.
I’ve searched through various online forums and GitHub repositories but couldn’t find a working solution. Some references are:
Apple Developer Forum Thread: https://forums.developer.apple.com/forums/thread/762321
GitHub Issue: https://github.com/SeleniumHQ/selenium/issues/11381
Howdy,
WKWebView feature request: allow Fullscreen API without User Gestures
similar to ElectronJS' userGesture: true flag that allows devs to bypass user gesture restriction for Fullscreen API and similar
executeJavaScript(code[, userGesture])
https://www.electronjs.org/docs/latest/api/web-contents#contentsexecutejavascriptcode-usergesture
afaik this is allowed because of a fairly recent update to Chromium that also allows users to give Fullscreen API permissions per domain
https://chromeos.dev/en/posts/using-the-fullscreen-api-without-gestures
Would be greatly useful for a use case in my cross-platform app, so I can avoid rewriting all platforms to use Chromium
Thanks
I'm posting a question here as I have encountered an issue while seeking help from engineers in the thread. thread773837
If the "Not Secure Connection Warnings" is enabled in Settings > App > Safari, are HTTP connections not allowed under any circumstances?
I also posted a question about NSAllowsLocalNetworking not being applied, and I was informed that ATS (App Transport Security) is not related to SFSafariViewController. If that's the case, what feature causes the error "Safari cannot open the page. Error: Failed to navigate to an HTTP URL with HTTPS-only mode enabled"?
I am currently working to resolve this issue.
"We have a multi-tenant EdTech platform serving over 1500 clients, each with a unique domain (e.g., client1.eduapp.com). We use WKWebView in a native shell. Due to WKAppBoundDomains restriction, we can't dynamically list all domains. How can we support dynamic tenants while maintaining cookie persistence"
"Can Apple suggest a best practice or alternative approach for apps using WebView/PWA shell architecture across multiple client domains?"
Problem:
We cannot predefine all 1500 domains in WKAppBoundDomains due to limitations.
As a result:
Service workers fail to register, breaking PWA functionality Ex: Offline.
Topic:
Safari & Web
SubTopic:
General
I'm referring to the following:
https://developer.apple.com/documentation/automaticassessmentconfiguration
I can't find this information anywhere. I'm wondering if I can enable and disable this function in Safari or other browsers on my website.
Topic:
Safari & Web
SubTopic:
General
使用direct distribution进行分发时,safari web extension 在safari setting 中显示没有权限读取、修改或传输任何网页的内容。
但是我在看公证日志显示插件是正常的公证的
这导致safari extension 无法使用。
公证日志
https://www.coupert.com/img/2025-04-10/notarization-log.json
We would like to confirm the unsubscribe flow related to recurring payment processing.
When a user unsubscribes, does your system send any notification to us?
If no notification is provided, we will not be able to detect the unsubscribe event and will continue to send recurring payment requests to the gateway periodically. Would this cause any issues?
We would appreciate it if you could share the specific unsubscribe flow with us.
Thank you in advance for your support.
"The Referer header allows a server to identify referring pages that people are visiting from or where requested resources are being used. "
This header is never forwarded to server when the user is browsing the website in a WebView. This is properly maintained by other browsers but not in-app.
How do I include it?
Topic:
Safari & Web
SubTopic:
General
The new WebView implementation in *OS 26 versions is a very valuable addition to the SwiftUI toolset. I was experimenting with it and was wondering how to implement a Pull To Refresh. While this was easily achievable with the "old" WKWebView I was not able to find an API to implement, for example, a page reload when the user uses a pull to refresh gesture.
I tried to attach to a .refreshable(_:) modifier to the WebView but without success.
Is there an official API for that or should maybe .refreshable(_:) already work and it's just a bug or is it simply not yet supported?
Here is a minimal example I was trying but didn't succeed:
struct ContentView: View {
@State private var page = WebPage()
var body: some View {
NavigationStack {
WebView(page)
.refreshable {
page.reload()
}
}
}
}
Any help is much appreciated. Thank you!
There is no problem with the content display of each tab, but the tab bar is completely buggy.
If you open 5 or more tabs and browse tabs after the 5, the first 4 tab bars will be completely blacked out, and you don't even know how many tabs you have.
If you click on the place where the tab title probably exists, the tab is displayed as if the partial display of the tab bar has been restored.
There is no problem with content display. But because it is unclear what tab is open, the browsing experience is at its lowest.
If you switch to the tab after the 5th, the first 4 will return to the blackout state again.
Of course, it is the latest software configuration at the moment. There is no shortage of memory at 24GB.
I recently started developing a Safari extension with AppExtension, but is that due to it?
Topic:
Safari & Web
SubTopic:
General
When we embed some of the youtube videos are unable to load in the Mobile app but at the same time it works in Website. I need to allow it in both places.
I have tried both embed and native sdk for youtube in iOS.
updateDynamic rules is blocking ads on my device with iOS 17.4, but on my iOS 18 device the same code is not blocking ads.
Is this a known issue?
Subject: Help Needed with App Clip Implementation
Hi Team,
I need some assistance with implementing App Clip behavior in safari and also experimenting using TestFlight app.
Default App Clip URL:
https://appclip.apple.com/id?p=com.jey.ppclient-prod.appclip
Website for App Clip Integration:
https://appclip-sand.vercel.app/customer
Current Behavior:
Default App Clip URL:
When I embed the default App Clip URL in an HTML tag like below:
Launch App Clip
it does launch the App Clip. but it says the appclip not supported in your region
I've already added this configuration under Local Experience in App Store Connect.
Website Integration:
I’ve registered the site using the Advanced App Clip Experience.
The apple-app-site-association file is in place.
When I visit the site, the App Clip does launch as expected.
What I Need Help With:
I want to launch the App Clip from a custom button click, using either:
The default App Clip URL, or
The website URL (e.g., https://appclip-sand.vercel.app/customer) with additional query parameters like userId or sessionId.
Is there a supported way to achieve this—perhaps through JavaScript or a specific tag setup that works with either Local or Advanced Experience?
Your guidance would be greatly appreciated.
Thanks,
Jey
I have a simple Safari extension for iOS.
In its popup, I want a button that will open the app via a universal link.
I have this kind-of working, except that Safari opens the actual online destination of the link with a banner at the top saying "Open in the XXXX app" and an OPEN button.
What do I have to do to go directly to the app?
More generally, I know that if I copy-and-paste a universal link into the Safari address bar, Safari does the same thing - but it does go directly to the app from an <a href="...."> link.
In my app extension JavaScript, I set window.location. Presumably this is too similar to pasting into the address bar.
Is there some alternative to setting window.location that is more like clicking on a link and will go directly to the universal link's app?
Thanks.
We have written a PAC script that blocklists certain domains and whitelists others. We went to Settings > Network > Wi-Fi (the network we are using), then clicked on Details, and under Proxies, we added the PAC file URL in the Automatic Proxy Configuration section.
We tried hosting the PAC file both on localhost and on a separate HTTP server.
After saving the settings, we tested several URLs. The blocking and allowing behavior works correctly in all browsers except Safari.
Below is the PAC script we are using for your reference.
The script works as expected in browsers other than Safari.
This is how the PAC script URL looks:
http://localhost:31290/proxy.pac
function FindProxyForURL(url, host) {
var blacklist = new Set(["facebook.com", "deepseek.com"]);
var b_list = [...blacklist];
for (let i = 0; i < b_list.length; i++) {
let ele = b_list[i] + "*";
if (shExpMatch(host, ele) || shExpMatch(url, ele)) {
return "PROXY localhost:8086";
}
}
if (isIPBlocked(whitelist_subnet, hostIP)) {
return "PROXY localhost:8087";
}
if (isIPBlocked(blacklist_subnet, hostIP)) {
return "PROXY localhost:8086";
}
return "PROXY localhost:8080";
}
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
I've a apple pay integration on my website. The new sdk, that allows third party browsers.
My integration works well everywhere, except on third party when I read the QR code it results in a "payment incomplete".
I have gone through several threads in apple dev forums, and several guides on implementation steps and troubleshooting. But I'm still without solution.
When Debugging in iOS device I get: "Application failed to provide a valid merchant session. We can't proceed to authorize the transaction."
I've doublechecked, the values I send to create the payment Session are correct, the domain and merchantIds. (It works well with the same implementation on safari, what's the difference here?)
I've also doublechecked the values i'm sending to the completeMerchantValidation, and they are all in the right format and types.
What else can iIcheck?
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.
Merhaba ben Müslüm
İkuz blog sayfam için Safari tarayıcıdan siteye çok fazla istek geliyor. Sayaçlara girdiğimde uygulama safari olarak gözüküyor ve binlerce sayfa isteği gelmiş. Bu bir siber saldırı mı ?
site adress https://ikuz.com.tr/
Topic:
Safari & Web
SubTopic:
General