Link to a Confluence page with a special character is failing

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Platform notice: Server and Data Center only. This article only applies to Atlassian products on the Server and Data Center platforms.

Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.

*Except Fisheye and Crucible


In this article we are discussing the example of JIRA and Confluence and the character ':', but the same issue can occur between any two applications and with any special character.



Trying to link a Confluence page to a JIRA issue (or to any other application) where the Confluence page contains a special character (eg ':') fails with the error : "No Confluence page found with the given URL".


Steps to reproduce :

  • Navigate to JIRA issue > More > Link > Confluence page
  • Search for a Confluence page with a special character. For example ':'
  • The page is searchable but when clicking on "Link" the following error is displayed.





  • JIRA and Confluence are hosted behind the reverse proxy.

Diagnostic Steps

  • Issue is not reproducible after bypassing the proxy
  • With proxy, looking closer, there is also a difference in the url displayed in Confluence from the one displayed in JIRA for the same page.
  • The following error is displayed in Confluence logs: 

    2017-03-01 09:33:17,977 WARN [http-nio-8082-exec-23] [oauth.serviceprovider.internal.AuthenticatorImpl] logOAuthProblem Problem encountered authenticating OAuth client for url "", error was "signature_invalid", with parameters "{oauth_problem=signature_invalid, oauth_signature=xOAIBqODL66ZOHlTHYCnf5Uh0HWCF1FLPujjblWUVAfs6u3V4V3qQwNxUg6JddNQDFbBLqKYfonwIfI1Sp9RRqtbhDsdhJC3kTSC2++b5oUja1BJ59YrnyAhxP/OBJT9ePcru3V9C8P9Pq9tVIKX7HJaTQKeU3DSqWDo1ZvSZB8=, oauth_signature_base_string=GET&, oauth_signature_method=RSA-SHA1}"


When JIRA searches for the page, Confluence is sending the url with '%3A' to JIRA. However at the time of adding the page link, JIRA proxy is encoding '%3A' to ':' and sending it back to Confluence. At this moment, Confluence sees that the request url was modified and hence fails with the 'signature_invalid' error. 
This same problem does not arise when you manually change the url to add the colon ':' in the url. This is because proxy does not interfere with this url at this point. So Confluence receives this url as is. So the link is approved.


  • Replace %3A to use colon (:) in JIRA right before pressing "Link"


(info) We are taking Apache httpd as an example here : 

Use the 'nocanon' parameter in the proxy configuration as it suppresses the special character conversion in the url.

Reference :

The optional nocanon keyword suppresses this and passes the URL path "raw" to the backend. Note that this keyword may affect the security of your backend, as it removes the normal limited protection against URL-based attacks provided by the proxy.

Description:	Maps remote servers into the local server URL-space
Syntax:	ProxyPass [path] !|url [key=value [key=value ...]] [nocanon] [interpolate] [noquery


ProxyPass               /jira nocanon


Context :

Example of a Url proxied by httpd

Without using nocanon  : http://xxxxx/jira/browse/DRX-1+:

Using nocanon  : http://xxxxx//jira/browse/DRX-1+%3A



Last modified on Mar 30, 2017

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