URL with underscores don't work

[907th]

HTTP incorrectly converts sms_service.mysite.com URL into sms%5Fservice.mysite.com. And then my request fails with HTTP::ConnectionError: failed to connect: getaddrinfo: Name or service not known error.
PS. curl for the same URL works fine.

[907th]

My teammate thinks that this issue should be fixed in the Addressable gem. So he created a similar issue in that gem.

[tarcieri]

Addressable has been the source of a lot of problems, I think. We've discussed removing it (or at least minimizing its usage) in a 2.0 release.

[tarcieri]

One thing I should note on this: underscores aren't technically allowed in domain names (only [a-z0-9\-])

[907th]

@tarcieri You're right, they are not allowed in DNS names. Thanks!

[tarcieri]

I suggest either fixing your URLs or fixing Addressable.

[sporkmonger]

@tarcieri I'd actually be really interested in hearing more about where Addressable has been a problem.

[tarcieri]

@sporkmonger #297 has most of the discussion. For what it's worth I don't think we're planning on removing it anymore.