nginx custom maintenance 503 page

I have a nginx with a custom 503.

error_page 503 @maintenance;

location @maintenance {
    root   /usr/share/nginx/html/custom/503;
    rewrite ^(.*)$ /index.html break;

location  /503-static/ {
    root /usr/share/nginx/html/custom/;

My /503/index.html is my custom maintenance page witch includes a nice CSS and photos:

<link rel="stylesheet" type="text/css" href="https://www.mydomain.tld/503-static/maintenance.css">

All these is working fine.

Problem is that I would like to replace css link with a relative one like 503-static/maintenance.css.

In the case when user requests: www.mydomain.tld custom html will be loaded and maintenance.css with relative path will load as well

But: in the case when user requests: www.mydomain.tld/a/b/c/bla.html, my custom 503 index html will be loaded fine but relative link for css will be $document_root/a/b/c/503-static/maintenance.css .... and will not display

My question is: using relative link path for css file ... how to cope with different $uri? Any help with a rewrite ?

Thank you


Just strip the protocol and domain, keep the leading slash. Relative paths are a very bad fit for this scenario. Absolute work perfectly.

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