Safari/Remixer Regex Compatibility

[ethanaturner]

Description

The OER Remixer does not load in several versions of the Safari browser.

Current Insights

Remixer loading appears to be blocked due to several issues with regular expressions in the Remixer source code due to an invalid group specifier name issue. Removing these regexes (not an acceptable fix) appears to allow the Remixer to load.

Affected Environments

The issue primarily appears to affect the Safari browser. It is unclear if the issue is limited solely to macOS.

Possible Fixes

Several regular expressions within Remixer may need to be rewritten to avoid using Lookbehind.

[Miniland1333]

New version of macOS and iOS finally support lookbehinds in v16.4 and above (March 26 2023) https://caniuse.com/?search=lookbehind.

I would recommend testing that this issue is now fixed on these newest version of safari, and if so this issue can be closed!