404 error when url contains phrase 'webm'

[DeVrije]

Yesterday my own web system does not work properly as follows:

Example 1:
url '/localhost/myproject/xxx' properly gives the message telling the name 'xxx' is unknown displaying on my own error page.

Example 2:
url '/localhost/myproject/xxxwebmsgxxx' directly displays the strang message:
Not Found

The requested URL was not found on this server.
Apache/2.4.52 (Win64) OpenSSL/1.1.1m PHP/7.4.27 Server at localhost Port 80

After my investigation it only seems by the phrase 'webm' in url. Should it be a bug in the Apache of XAMPP for Windows?

[Nobbie]

No.

Probably a misconfigured redirect (in a .htaccess file or so). See als the access log and error log for more information. It also maybe a leftover off a webmin installation.

P.S.: Actually i cannot see any strange behaviour, is there a file or folder xxxwebmsgxxx?