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BoldGrid / w3-total-cache

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HTTP2 push wouldn't handle minified css/js file properly if generic mirror cdn is on #338

Closed Xiderowg closed 3 years ago

Xiderowg commented 3 years ago

Presume that my site is running on example.com and a mirror cdn is running on cdn.example.com. If I configure cdn.example.com as generic cdn and enable minify with Rewrite URL structure, I would find that the path of minified file on cdn is correct in response header, which is like Link: <https://cdn.example.com/wp-content/cache/minify/*****.css>; rel=preload; as=style;, but when browser make a request to that url, a 301 moved permanently status is returned and the location in header is https://example.com/wp-content/cache/minify/*****.css, which is an undesired result. And other static files like plugin and theme's css, js and images won't have this kind of issue.

The example site is running on Nginx 1.18.0 and PHP 7.4.0.

mavas84 commented 3 years ago

Hello @Xiderowg

I am sorry about the issue you are experiencing and thank you for taking the time to report this, I am happy to assist you with this. This seems like the CDN issue more than the issue with W3TC. SO you should double-check your CDN settings. I'll make sure to try and replicate the issue, and it would be helpful. if you could share the Website URL and the CDN provider you are using. Thanks!

Xiderowg commented 3 years ago

Hi @mavas84 , my website URL is https://edlinus.cn, and I'm using CloudFlare and Tencent Cloud CDN for global and Mainland China access, and both of CDNs can reproduce same issue I mentioned above. Following are two test results that I just done minutes ago from WebPageTest. https://www.webpagetest.org/result/210212_DiSS_52c813fc4e4d5f93db730621d6f6658e/1/details/ https://www.webpagetest.org/result/210212_DiPB_6e8ac4b58596b31da6a0e2c3a644fb22/1/details/ The first one is using CloudFlare, the second one is using Tencent Cloud CDN, and they share same origin server with same configuration.

I am using Aggressive (cache all static resources, including ones with a query string) cache level on CloudFlare, and use similar config on Tencent CDN.

mavas84 commented 3 years ago

Hello @Xiderowg

Thank you for the feedback. I've tried to replicate the issue but I was not able to. The 301 "Moved Permanently" suggests that you have some BC rule in nginx that is redirecting those files. To make sure, please disable Browser Cache temporarily, save all settings and purge the cache and see if the 301 redirect is still there. Thanks!

Xiderowg commented 3 years ago

Hi @mavas84 , I tried to disable Browser Cache and reload Nginx, but still no luck. The newest test results: https://www.webpagetest.org/result/210213_DiKZ_dc17aae65b838655b6e548ed6f1ee61d/ And here's my W3TC configuration file: { "version": "2.1.0", "cluster.messagebus.debug": false, "cluster.messagebus.enabled": false, "cluster.messagebus.sns.region": "", "cluster.messagebus.sns.api_key": "", "cluster.messagebus.sns.api_secret": "", "cluster.messagebus.sns.topic_arn": "", "dbcache.configuration_overloaded": false, "dbcache.debug": false, "dbcache.debug_purge": false, "dbcache.enabled": true, "dbcache.engine": "memcached", "dbcache.file.gc": 3600, "dbcache.file.locking": false, "dbcache.lifetime": 180, "dbcache.memcached.persistent": true, "dbcache.memcached.aws_autodiscovery": false, "dbcache.memcached.servers": [ "127.0.0.1:11211" ], "dbcache.memcached.username": "", "dbcache.memcached.password": "", "dbcache.memcached.binary_protocol": true, "dbcache.redis.persistent": true, "dbcache.redis.servers": [ "127.0.0.1:6379" ], "dbcache.redis.password": "", "dbcache.redis.dbid": 0, "dbcache.use_filters": false, "dbcache.reject.constants": [ "APP_REQUEST", "DOING_CRON", "DONOTCACHEDB", "SHORTINIT", "XMLRPC_REQUEST" ], "dbcache.reject.cookie": [], "dbcache.reject.logged": true, "dbcache.reject.sql": [ "gdsr_", "wp_rg_", "_wp_session_", "_wc_session_" ], "dbcache.reject.uri": [], "dbcache.reject.words": [ "^\\s*insert\\b", "^\\s*delete\\b", "^\\s*update\\b", "^\\s*replace\\b", "^\\s*create\\b", "^\\s*alter\\b", "^\\s*show\\b", "^\\s*set\\b", "\\bautoload\\s+=\\s+'yes'", "\\bsql_calc_found_rows\\b", "\\bfound_rows\\(\\)" ], "lazyload.enabled": false, "lazyload.process_img": true, "lazyload.process_background": true, "lazyload.googlemaps.google_maps_easy": false, "lazyload.googlemaps.wp_google_maps": false, "lazyload.googlemaps.wp_google_map_plugin": false, "lazyload.exclude": [ "avia-bg-style-fixed", "data-bgposition=", "data-envira-src=", "data-large_image=", "data-lazy-original=", "data-lazy-src=", "data-lazyload=", "data-lazysrc=", 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your patience :)

mavas84 commented 3 years ago

Hello @Xiderowg

Thank youj for the information and I am sorry for the late reply. Again I tried to replicate the issue with no success. Since the issue persists when BC is disabled it means that the issue is not related to W3TC but something else is adding those headers. So you should double-check the CDN configuration, or alternatively, I can offer you our Premium support to investigate the compatibility issue in Performance>Support. Thanks!