fabiograsso commented on issue #1539: Will ngx_pagespeed affect the use of http / 2 server push? URL: https://github.com/apache/incubator-pagespeed-ngx/issues/1539#issuecomment-377493375 I've tried using hint_preload_subresources but I've found that the Link header are sent with the "nopush" attribute This is also what's reported on example in PageSpeed documentation: https://www.modpagespeed.com/doc/filter-hint-preload-subresources > Then PageSpeed will add the following HTTP headers to the page: > > ``` > link: </styles_all_styles.css>; rel=preload; as=style; nopush > link: </basic.css>; rel=preload; as=style; nopush > link: </fancy.css>; rel=preload; as=style; nopush > link: </script.js>; rel=preload; as=script; nopush > ``` According to [nginx documentation](https://www.nginx.com/blog/nginx-1-13-9-http2-server-push/): > If you don’t want NGINX to push a preloaded resource, add a nopush parameter to the header: > > ``` > # Resource is not pushed > Link: </nginx.png>; as=image; rel=preload; nopush > ``` I don't know if there is a way for setup PageSpeed in order to not send the "nopush" but if not it's normal for the push to fail, and it's working as expected. I wonder why this choice to put nopush in the headers.
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