No files that are requested by the HTML (i.e. <link> tag, or <script src=... tag) work. Every time they return error 500 regardless of the browser.
If I open the said file in a – I see the contents correctly. I can right click the URL when I do View Source to make sure there’s no typo.
Refreshing the page does not add new lines to /var/log/apache2/error.log
Ubuntu 10.04 – 32bit
Example of HTML:
<style type="text/css">
@import '/css/main.css';
a em, button em {font-style:normal; text-decoration:underline;}
</style>
<link type="text/css" rel="stylesheet" href="/floatbox/floatbox.css" />
<script type="text/javascript" src="/floatbox/floatbox.js"></script>
Found some cause:
Issues with javascript were unrelated — that was my fault entirely.
For .css I parse those files using PHP also. This was done by the following line:
AddType application/x-httpd-php .php .css
I tried changing it to
AddHandler application/x-httpd-php .php .css
But with no success — if either one of the two lines above is present, then I get Error 500.
Unfortunately this is not something that could have been solved by the community. The error 500 was triggered because I had called an xdebug function from a registered shutdown function but I did not have xdebug module loaded correctly.