One of our user is using an "Enhanced Rich Text" column in a list in SharePoint 2010.

They are using "Insert Link --> From Address" button and adding a link. SharePoint is modifying the link and causing the trouble as the modified link is erroring out.

User is trying to add the link


and SharePoint is changing it to


Can somebody help me find the reason for this and what could be done to add the link that doesn't error out?

I replaced the server name with * in the URL before /Windchill, for not wanting to expose the server name.

1 Answer 1


The %3A is replaced by a colon, by means of decoding an URL. I noticed it even results in an error on my page if you include %20 (a space).

More information about URL encoding

This encoding most likely happens as part of the "removing unsafe content" process. If you edit the source code in SharePoint Designer you get a message that the unsafe content will be removed. After this the %3A suddenly changed into a colon. The same thing no doubt happens when you save in the browser. AFAIK there's no way to change this behavior.

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  • Thank you for taking the time and responding Anima. I am a bit confused with what the system is doing here. If we try to understand that it is doing URL decoding by converting %3A to :, then why is the system also doing encoding by replacing & with %26 at the same time? Dec 6, 2013 at 13:54
  • The encoding on itself does make sense, %26 would be resolved to & later on. Why it doesn't encode the colon again... I don't know. Maybe there's some security issue concerning %A3. But I doubt it. Dec 6, 2013 at 14:10

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