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.

For those who get Invalid Regular Expression Error

JeremyLT Split this topic May 11, 2021, 3:37pm 2

A post was merged into an existing topic: Invalid Regular Expression Error Issue

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