Custom User-Agent at utils/request

[touhidurrr]

resolves #519

[jmerle]

I'm not against making it possible for OJ's to recognize which requests are coming from Competitive Companion, but the User-Agent header isn't an option because Chrome doesn't allow overriding it. The fetch specification says it should be possible, but the corresponding Chromium bug report hasn't been fixed for nearly 9 years.

I've slightly modified your code to use the X-Competitive-Companion header rather than the User-Agent header to indicate a request is coming from Competitive Companion, as that header can be set on all browsers. Can you check with the person that requested the User-Agent change whether this approach is satisfactory on their end?

[touhidurrr]

@jmerle I pinged them with the PR link. Let's see if they reply. If not, you can merge this after a day or two. However, it is to be noted that they did not mention this as a requirement. They just expressed that it would be nice if it was there.

[mehedi-shafi]

Thank you both, @touhidurrr and @jmerle, I'm one of the maintainers of baps-oj and we really appreciate you taking the time make this. Will help us understand where the requests are coming from.