Invalid Regular Expression Error Issue

freeCodeCamp Support
1

Hello freeCodeCamp Team,

Apparently there’s a problem occurring when using freeCodeCamp in Safari browser, a few users (including me) can’t complete any challenges or lessons because we keep getting the Invalid Regular Expression Error. I tried with Chrome and it worked just fine.

2

Hi,

I don’t know what exactly is happening but because there are several people having the same problem I am afraid that FCC developers are playing with tests for your courses and added something what is not supported on Safari web browser. Please try another browser for now.

3

Hi all. A recent update to the test suite has an issue with Safari compatibility. We’re working on it, but until a fix is pushed, I recommend using another browser, such as Firefox, Chrome, or Edge.

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5

Thank you for informing us!

6

We have reverted the commit that is causing the trouble while looking for another approach to solve the original bug that this commit was introduced to fix:

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