When a webhook URL has a port specified (like :5000), a 500 error is generated:

2013-08-30 05:56:05,198 webhooks-http-retriever:thread-4 
ERROR      [webhooks.util.http.CachingHttpContentRetriever] 
Unable to post to http://bamboo.mysite.org:5000/deploy due to HTTP/1.0 500 INTERNAL SERVER ERROR

This problem does NOT exist for webhook URLs without a port specified.

Also, I was unable to put quotes around the URL in the UI, nor was I able to escape the colon character, likely due to input validation. This is fine, but wanted to give further context into steps taken to work around the issue.

Please fix, as we are not always able to run our APIs through port 80.

Thanks!