Negative look behinds are not supported by firefox

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Description

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Contributor guide

Research direction

Investigate the use of negative lookbehinds in the codebase and replace them with equivalent patterns that are supported in Firefox, such as using a capturing group and then negating the match in the callback or using a different regex approach.

Tech stack

javascript

Domain

frontend

Issue type

Bug

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

2

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

Active

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

Clear

Prerequisites

JavaScriptRegular Expressions

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

80