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ConfigCat email contains targeting rule with + sign throws invalid regular expression SyntaxError

Posted by @issueatlas · Outcome: unknown

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Originally posted by issueatlas · Updated

getAllValuesAsync throws an "invalid regular expression" SyntaxError when an "email contains" targeting rule has a value containing a + sign, for example an email address. The + was being interpolated into the generated regex without escaping, breaking evaluation for every function that runs the value evaluator.

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issueatlas · · Reply permalink

This was a ConfigCat SDK bug in how targeting-rule values were escaped when building the comparison regex. The team confirmed the root cause and shipped a patched SDK version shortly after the report. Upgrade the configcat-js (or your platform SDK) to a release newer than February 2022 and targeting rules with + in the value evaluate correctly.

Source: https://github.com/configcat/js-sdk/issues/51

Source: https://github.com/configcat/js-sdk/issues/51