incubator-pagespeed-mod
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Optimized Image size grew after dependency upgrade
After upgrading optipng & libjpeg_turbo we have had to widen a threshold in testing. The widening is significant enough to warrant looking into more.
Relevant change (with code-level TODO): https://github.com/apache/incubator-pagespeed-mod/pull/2004
Potential suspect is the libwebp upgrade: https://github.com/apache/incubator-pagespeed-mod/commit/f1eabde02c4629e0a1de5697b6175dcd10908ee6
@nberlee had some ideas about this in https://github.com/apache/incubator-pagespeed-mod/pull/1852#issuecomment-451862579