JIRA WebHook firing, but resulting in 401

I am currently trying to use a JIRA WebHook to POST issue updates to an endpoint. (JIRA Server v7.2.7) The Jira log says:

httpclient-callbacks:thread-13 WARN anonymous     [c.a.webhooks.plugin.PublishTaskFactoryImpl$PublishTaskImpl] Client error - 401 when posting to web hook at 'https://{mydomain}.com:443/{path}'

The strange thing is, the error isn't coming from the server because there's no log entry for the 401. Also, if I spin up a simple localhost and change the URL in JIRA, then it works. Any idea why the WebHook's failing to post using https? Or if that's even the issue?

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Hi Clayton,

There is a bug that might be related to this issue over at JRASERVER-42579

I can't say for sure that this applies in your case yet, because I think you have obscured the parts of the URL that might contain this information, but I am interested to see if perhaps you can share more of the URL you are using for this webhook.   I am not particularly interested in the domain or subdomain of the URL, but the rest of the syntax could be a factor here.

While that bug is directly concerning the conversion of a space character into the string of '%20', my concern is to see if any other parts of your URL contain any '%' characters as a means to substitute characters.   The site https://ascii.cl/ lists a Hex code conversion chart where certain characters can get converted into hex.   So your space can be converted into a %20 or a / can be converted into a %2F.   I am interested to learn more about the specific URL you are using, and then seeing if Jira might be converting the characters here into a hex code in order to be able to make this webhook call.   The concern here is that if this conversion is taking place that this might be causing a http error code of 401.

Regards,
Andy

That was exactly the issue. Thanks for the quick reply.

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