[Webkit-unassigned] [Bug 263878] New: REGRESSION: Share link in ARQL now shares USDZ URI rather than originating HTML page URL

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=263878

            Bug ID: 263878
           Summary: REGRESSION: Share link in ARQL now shares USDZ URI
                    rather than originating HTML page URL
           Product: WebKit
           Version: Safari 17
          Hardware: iPhone / iPad
                OS: iOS 17
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mail at milesgreen.net

Prior to iOS17, when opening a USDZ in AR QuickLook, the Share button would share the URL to the originating HTML page.

Now in iOS17, the Share button shares the direct URI to the USDZ file itself. 

This greatly changes the expected user experience. Rather than sharing a link to the HTML page the experience originates from, now a direct link to the USDZ is shared, which provides a less intuitive user experience. 

Repro:
- On iOS17 device, visit: https://developer.apple.com/augmented-reality/quick-look/
- Tap on a thumbnail to view in AR
- In ARQL, tap Share button
- Copy link
- Observe that it is the USDZ URI and not the originating page URL

Workaround:
- This can be somewhat mitigated by using the canonicalWebPageURL parameter. 
- But note that there is an existing bug that limits the effectiveness of canonicalWebPageURL when originating HTML page has multiple query parameters (https://bugs.webkit.org/show_bug.cgi?id=248219)

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