#36688: GzipMiddleware adds 'Vary: Accept-Encoding' unnecessarily
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Reporter: Adam Johnson | Owner: Adam Johnson
Type: Bug | Status: assigned
Component: HTTP handling | Version: dev
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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`GZipMiddleware` has an early-return path when the compressed content is
longer than the original, to save bandwidth. Unfortunately, in this case,
it still adds `Vary: Accept-Encoding`, slightly degrading HTTP cache
performance.
The fix is to move the `patch_vary_headers()` call later.
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Ticket URL: <https://code.djangoproject.com/ticket/36688>
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