[Webkit-unassigned] [Bug 207964] New: Avoid preconnecting to custom URL schemes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207964

            Bug ID: 207964
           Summary: Avoid preconnecting to custom URL schemes
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Page Loading
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: nham at apple.com
                CC: beidson at apple.com

NetworkProcess::preconnectTo preconnects to custom URL schemes, while NetworkConnectionToWebProcess::preconnectTo does not. The former's behavior should match the latter's.

This will also fix the debug test failures in TestWebKitAPI.WebKit.DownloadNavigationResponseFromMemoryCache and TestWebKitAPI.ContentFiltering.LazilyLoadPlatformFrameworks introduced by https://bugs.webkit.org/show_bug.cgi?id=207777. The reason for the debug test failure is that both of these tests register a custom HTTP scheme handler, and the scheme handlers are returning responses to the preconnect request which is causing the assert in PreconnectTask::didReceiveResponse to fire.

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