redbox-cdn opened a new issue #1570: PageSpeed could not optimize (Proxy_pass) if response returned 200 URL: https://github.com/apache/incubator-pagespeed-ngx/issues/1570 Hi. I feel something strange is going on pagespeed optimize action. Situation: Client -- Nginx(pagespeed and Proxy_pass) -- Origin Web server Client send request into Pagespeed including "if modify since" header, Pagespeed does not optimize if origin Web server return 304. So, I added the `proxy_set_header If-Modified-Since "";` proxy_pass directive. After that Origin Web server response is 200 but Pagespeed could not optimize. ### nginx Debug message `[ngx_pagespeed 1.13.35.1-0] Could not rewrite resource in-place because URL is not in cache: http://test.com/test/test.css` ### TEST request `curl -svko /dev/null 'http://1.1.1.1/test/test.css' -H 'Host: test.com' -H 'X-forwarded-proto: https' -H 'pragma: no-cache' -H 'cache-control: no-cache' -H 'If-Modified-Since: Mon, 04 Jun 2018 09:00:52 GMT' ` ### Origin Server response ``` < HTTP/1.1 200 OK < Date: Fri, 08 Jun 2018 02:48:01 GMT < Content-Type: text/css < Content-Length: 198 < Connection: keep-alive < Vary: Accept-Encoding < Last-Modified: Mon, 04 Jun 2018 09:00:52 GMT < Accept-Ranges: bytes < Cache-Control: max-age=3024000 < Expires: Fri, 13 Jul 2018 02:48:01 GMT < Vary: Accept-Encoding < Access-Control-Allow-Origin: * < Access-Control-Allow-Headers: Content-Type < Access-Control-Allow-Credentials: true < Strict-Transport-Security: max-age=31536000; includeSubDomains; preload ``` ### Nginx conf ``` server { listen 80; location / { proxy_set_header If-Modified-Since ""; ## ADD proxy_read_timeout 3600; more_clear_headers Server: ; proxy_http_version 1.1; proxy_set_header Connection ""; resolver_timeout 300s; resolver 8.8.8.8 8.8.4.4 valid=300s; proxy_pass $http_backend_schema://test.com; proxy_set_header Host $host; proxy_redirect off; } pagespeed on; location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" { add_header "" ""; } ##Cache Settings pagespeed FileCacheSizeKb 10000; pagespeed FileCacheCleanIntervalMs 5000; pagespeed FileCacheInodeLimit 100; pagespeed FileCachePath /home/cache pagespeed ImplicitCacheTtlMs 1; pagespeed ModifyCachingHeaders off; pagespeed EnableFilters in_place_optimize_for_browser; pagespeed HttpCacheCompressionLevel 0; pagespeed CriticalImagesBeaconEnabled false; pagespeed InPlaceResourceOptimization on; pagespeed PreserveUrlRelativity on; pagespeed JsPreserveURLs on; pagespeed ImagePreserveURLs on; pagespeed CssPreserveURLs on; pagespeed DownstreamCachePurgeLocationPrefix "http://localhost/purge";; pagespeed DownstreamCachePurgeMethod "POST"; pagespeed DownstreamCacheRebeaconingKey "test"; pagespeed CustomFetchHeader X-Forwarded-proto $http_x_forwarded_proto; pagespeed RateLimitBackgroundFetches off; pagespeed RewriteLevel PassThrough; pagespeed EnableFilters add_head,rewrite_css,flatten_css_imports,fallback_rewrite_css_urls,rewrite_javascript,remove_comments,insert_dns_prefetch,in_place_optimize_for_browser; #Purge request pagespeed PurgeMethod PURGE; pagespeed EnableCachePurge on; } ``` Does anyone know something good solution?
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
