Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 4827b5fe002be3e7b195492caeba1092bb0a03b3
      
https://github.com/WebKit/WebKit/commit/4827b5fe002be3e7b195492caeba1092bb0a03b3
  Author: Alex Christensen <[email protected]>
  Date:   2025-01-03 (Fri, 03 Jan 2025)

  Changed paths:
    M Source/WebKit/UIProcess/API/Cocoa/WKDownload.mm
    M Tools/TestWebKitAPI/Tests/WebKitCocoa/Download.mm

  Log Message:
  -----------
  WKDownloadDelegate.decideDestinationUsingResponse indicating a file that 
already exists should cancel instead of crashing network process
https://bugs.webkit.org/show_bug.cgi?id=285316
rdar://142036600

Reviewed by Richard Robinson.

When I introduced WKDownload I introduced some restrictions on 
decideDestinationUsingResponse
that were well intentioned but untested.  Richard found that if you improperly 
specify the destination,
we get an invalid IPC to a DownloadProxy object that no longer exists.  The 
didFail calls are
redundant.  Calling the completionHandler with an empty destination will make 
the download cancel.

* Source/WebKit/UIProcess/API/Cocoa/WKDownload.mm:
* Tools/TestWebKitAPI/Tests/WebKitCocoa/Download.mm:
(TestWebKitAPI::DestinationFileAlreadyExists)):

Canonical link: https://commits.webkit.org/288401@main



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