imizwa commented on issue #1933: webp images not being served in AMP pages? URL: https://github.com/apache/incubator-pagespeed-mod/issues/1933#issuecomment-513741753 Ok I have run some tests and can confirm that PageSpeed is not serving up webp images in AMP pages, and that's using a minimal config as shown below: `ModPagespeedRewriteLevel CoreFilters ModPagespeedEnableFilters prioritize_critical_css ModPagespeedEnableFilters defer_javascript ModPagespeedEnableFilters sprite_images ModPagespeedEnableFilters convert_png_to_jpeg,convert_jpeg_to_webp ModPagespeedEnableFilters collapse_whitespace,remove_comments` I also ran a diff check on both normal html and AMP html with PS on and off, it's working fine with standard HTML docs removing comments and rewriting image urls to webp. PS is changing/optimizing some code on the AMP pages (not much) but not touching the PNGs or JPGs and just serves the originals. In terms of content type, the document is HTML: `<!DOCTYPE html> <html amp> <head>....` I wonder if PS is even meant to serve up webp for AMP pages? Nothing I do seems to resolve it and this is happening on 3 different Ubuntu servers (2 cloud and 1 local). cheers, Richie
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