# RF or Chrome for Testing inserting string into URL "%C2%AO" **URL:** \ **Category:** Robot Framework\ **Created:** [7 August 2023 21:48 UTC](https://forum.robotframework.org/t/rf-or-chrome-for-testing-inserting-string-into-url-c2-ao/6077 "2023-08-07T21:48:16Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![northernhexposure](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/northernhexposure/32/2883_2.png) [@northernhexposure](https://forum.robotframework.org/u/northernhexposure)\ **Post date:** [7 August 2023 21:48 UTC](https://forum.robotframework.org/t/rf-or-chrome-for-testing-inserting-string-into-url-c2-ao/6077/1 "2023-08-07T21:48:16Z")
Hi all, Some of my tests are failing because either RF or Chrome for Testing is mangling the URL. Specifically it is inserting “%C2%AO” after the ${BASE\_URL} before any suffix. This is a new issue for us in the last week. When I trace the URL formation variables, they are clean. The URLs in the log are also clean (though they still fail with a 404). I can only see this when I run the test with the browser observable, so I can see it going to the malformed browser. An example URL is something like [https://mysite.com/�%AO/someotherpage](https://mysite.com/%C2%25AO/someotherpage) Has anyone seen this or has ideas for troubleshooting? I’m stumped. ---
**Author:** ![damies13](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/damies13/32/623_2.png) [@damies13](https://forum.robotframework.org/u/damies13)\ **Post date:** [8 August 2023 03:37 UTC](https://forum.robotframework.org/t/rf-or-chrome-for-testing-inserting-string-into-url-c2-ao/6077/2 "2023-08-08T03:37:15Z")
Hi Andy, I’ve not seen anything like this with any of the common libraries. - which library are you using? - can you make a simple test case that we can use to reproduce the issue with a publicly available site? - which version of robot framework are you using? - what are the versions of your libraries? FYI the utf-8 charecters for those url codes are - %A0 is Non-breaking space - %C2 is  But without more information I can’t help more than that. Dave. ---
**Author:** ![northernhexposure](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/northernhexposure/32/2883_2.png) [@northernhexposure](https://forum.robotframework.org/u/northernhexposure)\ **Post date:** [8 August 2023 14:56 UTC](https://forum.robotframework.org/t/rf-or-chrome-for-testing-inserting-string-into-url-c2-ao/6077/3 "2023-08-08T14:56:58Z")
Hi Dave, thanks for the reply. I’m using the Selenium on RF 6.0. I’m running from within a venv and as of last week using Chrome for Testing (which was its own journey getting functional). I’ll try to find a public example. I figured those were character codes of some sort - right now I’m experimenting with some escaping to see if I can circumvent the problem. Andy ---
**Author:** ![damies13](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/damies13/32/623_2.png) [@damies13](https://forum.robotframework.org/u/damies13)\ **Post date:** [9 August 2023 00:19 UTC](https://forum.robotframework.org/t/rf-or-chrome-for-testing-inserting-string-into-url-c2-ao/6077/4 "2023-08-09T00:19:49Z")
Hi Andy, A couple of suggestions: - Check your SeleniumLibrary version and your Selenium version as there recently have been issues with changes in Selenium 4.10 with all but the most current SeleniumLibrary version, I don’t think this is your issue but to be better safe - If you can open your robot file with a text editor that allows you to enable a setting to show all characters (aka invisible characters) to makes sure you don’t have those somehow accedently added to your script I don’t think it’s an escaping issue, sounds more like those characters are getting added in somehow, just a matter of troubleshooting to figure out where. Dave. ---
**Author:** ![OrrinGradwell](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/orringradwell/32/2387_2.png) [@OrrinGradwell](https://forum.robotframework.org/u/OrrinGradwell)\ **Post date:** [18 August 2023 09:28 UTC](https://forum.robotframework.org/t/rf-or-chrome-for-testing-inserting-string-into-url-c2-ao/6077/5 "2023-08-18T09:28:21Z")
Hi Andy I’m facing thenRobot Framework & Chrome for Test issue now, Would you mind providing your solution? ---
**Author:** ![northernhexposure](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/northernhexposure/32/2883_2.png) [@northernhexposure](https://forum.robotframework.org/u/northernhexposure)\ **Post date:** [18 August 2023 14:35 UTC](https://forum.robotframework.org/t/rf-or-chrome-for-testing-inserting-string-into-url-c2-ao/6077/6 "2023-08-18T14:35:12Z")
Hi Orrin - I think this was an issue in the command I was providing relating to the base URL. I had to play with it for a while to get it to go away but my suspicion is that a change from Python 2 to Python 3 on our end made it less tolerant of something or that extra noise was getting in from copying and pasting.