Opened 4 years ago
Closed 4 years ago
#32212 closed Uncategorized (wontfix)
Vary header changed by SessionMiddleware
Reported by: | y p | Owned by: | nobody |
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Component: | Uncategorized | Version: | 2.2 |
Severity: | Normal | Keywords: | cache Vary SessionMiddleware |
Cc: | Triage Stage: | Unreviewed | |
Has patch: | no | Needs documentation: | no |
Needs tests: | no | Patch needs improvement: | no |
Easy pickings: | yes | UI/UX: | no |
Description (last modified by )
To specify the cache mode, i use the view decorator like this:
@vary_on_headers('Accept', 'Accept-Language', 'Origin') @cache_control(public=True, max_age=3600)
But after tracing, I found that SessionMiddleware modified the Vary Header and added a Cookie, as follows:
if accessed: patch_vary_headers(response, ('Cookie',))
Causes cache invalidation after user login again.
I have specified the cache as public, in which case the cache scheme should have nothing to do with cookies.
Change History (2)
comment:1 by , 4 years ago
Description: | modified (diff) |
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comment:2 by , 4 years ago
Resolution: | → wontfix |
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Status: | new → closed |
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I'm afraid this is as-designed. It's just how session middleware works. See #3586 for the change implementing the current behaviour.
If you need hard caching here then serve the "static" pages from a separate app, without Session middleware, and use JavaScript to load the user-specific sections.