When wgUseFileCache is true, views of action=history and action=view pages by logged out users will be cached. This means that the "empty" Accept-CH header isn't set as the cache will return the cached HTML from a file. The file cache code then sets the headers and returns the response.
CheckUser should set the Accept-CH header for these cached responses when wgCheckUserClientHintsUnsetHeaderWhenPossible is true.
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | kostajh | T257893 [EPIC] Support User-Agent Client Hints header in CheckUser | |||
| Declined | Dreamy_Jazz | T344826 Add ClientHints header to action=history views when using cached response via HtmlFileCache |
Change 952524 had a related patch set uploaded (by Dreamy Jazz; author: Dreamy Jazz):
[mediawiki/core@master] [WIP] filecache: Add hook called when file cache is to be used
Change 952538 had a related patch set uploaded (by Dreamy Jazz; author: Dreamy Jazz):
[mediawiki/extensions/CheckUser@master] [WIP] clienthints: Add headers when using file cache for history page
Blocked on decision whether to collect Client Hints data via the JS API on rollback instead of HTTP headers.
Change 952524 abandoned by Dreamy Jazz:
[mediawiki/core@master] filecache: Add hook to add headers to HTMLFileCache response
Reason:
Not needed for the foreseeable future.
Change 952538 abandoned by Dreamy Jazz:
[mediawiki/extensions/CheckUser@master] clienthints: Add headers when using file cache for history page
Reason:
Not needed for the foreseeable future.