NEW238838
[iOS] Need API on NavigationAction to detect a simulated request 
https://bugs.webkit.org/show_bug.cgi?id=238838
Summary [iOS] Need API on NavigationAction to detect a simulated request
Ali Juma
Reported 2022-04-05 14:45:53 PDT
Chrome for iOS is using WKWebView’s loadSimulatedRequest API to display error pages for failed navigations. One reason for a navigation failing is when a URL is blocked by enterprise policy. In this case, Chrome tries to load a simulated request with an error message, using the URL of the blocked page. However, in decidePolicyForNavigationAction, the URL blocking logic cannot distinguish a real load of the blocked page vs a simulated request using that URL, since there's no information in the WKNavigationAction to tell us that this is a simulated request. One way to fix this would be to promote the _mainFrameNavigation SPI in WKNavigationAction to API, so that we can compare that WKNavigation* to the one returned by loadSimulatedRequest. I've also filed FB9974496 for this request.
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Alexey Proskuryakov
Comment 1 2022-04-06 08:41:40 PDT
rdar://91316525
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