Fix #78792: zlib.output_compression disabled by Content-Type: image/ #6198
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Disabling output compression for images has served to fix bug #16109, where zlib compressed images apparently have caused issues with Navigator 4. This shouldn't be an issue with somewhat contemporary browsers. Other than that, this is an arbitrary restriction – why don't we disable the compression for some other media types as well (e.g. video/* and audio/*)? All in all, we should leave that decision to userland.
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Oh, should not forget to credit Ewgenij Starostin who contributed the patch. |
nikic
approved these changes
Sep 29, 2020
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Please also add an UPGRADING note for this one. I think most of the time you indeed want to disable compression for images, but it is something we should leave under the control of the user. This only affects images served through PHP, and zlib.output_compression can be modified at runtime.
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Disabling output compression for images has served to fix bug #16109,
where zlib compressed images apparently have caused issues with
Navigator 4. This shouldn't be an issue with somewhat contemporary
browsers. Other than that, this is an arbitrary restriction – why
don't we disable the compression for some other media types as well
(e.g. video/* and audio/*)? All in all, we should leave that decision
to userland.