Getting 404 for S3 static website JS behind Apache proxy

Question

I have an Apache HTTP Server acting as a proxy in front an AWS S3 static website. So http://example.com/testsite goes to the S3 site, but should keep being seen as being accessed from http://example.com/testsite.

The initial index.html access results in a 200 response, however, all the JavaScript files that get run, return 404. They are located in the S3 root, same as index.html, but they end up being accessed as http://example.com/ instead of http://example.com/testsite, hence why I am getting 404.

I am hoping someone can help me with my Apache config snippet (see below, please), so that I can get the correct configuration.

RedirectMatch permanent ^/$ /doorman/
Redirect /js/ /frontman/js/
...
...
<Location /testsite >
  ProxyPreserveHost On
  AuthType openid-connect
  Require valid-user
  ProxyPass <%= @s3_website %>/
  ProxyPassReverse <%= @s3_website %>/
</Location>

President James K. Polk · Accepted Answer · 2025-04-16 20:06:23Z

0

I resolved this by using the configuration below:

  <LocationMatch /*.js >
    ProxyPreserveHost Off
    AuthType openid-connect
    Require valid-user
    ProxyPass <%= @s3_website %>
    ProxyPassReverse <%= @s3_website %>
  </LocationMatch>

  <LocationMatch /assets/(.*)$ >
    ProxyPreserveHost Off
    AuthType openid-connect
    Require valid-user
    ProxyPass <%= @s3_website %>/assets/$1
    ProxyPassReverse <%= @s3_website %>/assets/$1
  </LocationMatch>

  <Location /testsite >
    ProxyPreserveHost Off
    AuthType openid-connect
    Require valid-user
    ProxyPass <%= @s3_website %>
    ProxyPassReverse <%= @s3_website %>
  </Location>

Key pieces are:

ProxyPreserveHost Off - My S3 bucket name is different from the proxy so this needs to be Off.
LocationMatch <regex> - Required so the proxy can match, and map the URL requests and to the S3 bucket location/object.

edited Apr 16 at 20:06

President James K. Polk

42.2k34 gold badges113 silver badges149 bronze badges

answered Aug 29, 2018 at 18:08

Stuart Wong

274 bronze badges

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