This repository was archived by the owner on Apr 10, 2025. It is now read-only.
This repository was archived by the owner on Apr 10, 2025. It is now read-only.
Don't send webp to CriOS when there is no accept:image/webp #1256
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Description
The latest Chrome on iOS, based on WKWebView, cannot render webp images, but mod_pagespeed sends them.
See http://blog.chromium.org/2016/01/a-faster-more-stable-chrome-on-ios.html
I confirmed that this browser also does not send accept:image/webp. If, in the future, webp is re-enabled in CriOS, it will likely send accept:image/webp again.
This is a workaround:
SetEnvIf User-Agent CriOS mps_disable_webp
RequestHeader set ModPagespeedFilters -convert_jpeg_to_webp env=mps_disable_webp
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