Regex(sourceExtract) not working properly in Firefox


Regex(using sourceExtract) not working properly in Firefox whereas the same code works as expected in Chrome browser.
“CreationDate”: “2018-9-1”,
“Commands”: [
“Command”: “open”,
“Target”: “”,
“Value”: “”
“Command”: “sourceExtract”,
“Target”: “regex=(?<=Subscribe to the ).*(?=automation)”,
“Value”: “var1”

Output in Firefox - “[error]invalid regexp group” in error log
Output in Chrome - VAR1="a9t9 "



Thanks for reporting this. I confirmed it and we will look into it.


Solution: ?<= is the look behind regular expression. It is supported in Chrome, but not Firefox. Therefore this specific sourceExtract command works only in Chrome.

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