Reported by User Escargot rouge on Meta-Wiki: https://meta.wikimedia.org/wiki/Talk:Web2Cit/data/com/animenewsnetwork/www/templates.json

Steps to replicate the issue (include links if applicable):

• Try Web2Cit on a path that includes component beginning with a dot. For example https://web2cit.toolforge.org/https://example.com/.path

What happens?:
Web2Cit server fails with an internal error.

What should have happened instead?:
No internal error should have been thrown.

Software version (skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):