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<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>313716</bug_id>
          
          <creation_ts>2026-04-29 23:14:09 -0700</creation_ts>
          <short_desc>Preserve sticky user activation across same-origin navigations, block carry-over through cross-origin redirects</short_desc>
          <delta_ts>2026-04-29 23:25:39 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>New Bugs</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=312241</see_also>
    
    <see_also>https://bugs.webkit.org/show_bug.cgi?id=312719</see_also>
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter>klee</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2206125</commentid>
    <comment_count>0</comment_count>
    <who name="">klee</who>
    <bug_when>2026-04-29 23:14:09 -0700</bug_when>
    <thetext>Implement sticky user activation carry-over for same-origin navigations, as proposed in whatwg/html#11454.                                                                                                                                                           
                                                                                                                                                                                              
When a page navigates to another same-origin page, sticky activation(hasBeenActive) should be preserved. However, sticky activation should NOT be carried over when the navigation involves a cross-origin redirect(A -&gt; B -&gt; A2), to prevent confused deputy attacks.                                                                                                                                         
                                                            
Upstream WPT tests:                                                                                                                                                                         
  - html/user-activation/navigate-to-sameorigin.html                                                                                                                                          
    (verifies sticky activation is preserved across same-origin navigations)                                                                                                                  
  - html/user-activation/navigate-to-crossorigin-redirect.html                                                                                                                                
    (verifies sticky activation is NOT preserved through cross-origin redirects)                                                                                                              
                                                            
Related:                                                                                                                                                                                    
  - Bug 312241 (WPT test import, resolved)
  - Bug 312719 (eventSender popup window support, required for running the tests)                                                                                                             
  - Spec PR: https://github.com/nicolo-ribaudo/tc39-proposal-structs/pull/11454</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2206126</commentid>
    <comment_count>1</comment_count>
    <who name="">klee</who>
    <bug_when>2026-04-29 23:25:39 -0700</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/63952</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>