The regex used on UserTagLinkifier contains a negative lookbehind, which is unsupported on Safari.
In order to being able to use the linkifier on Safari, I removed the lookbehind from the regex and refactored the code to do the same thing that the original regex.
I also fixed some user tag tests that were failing.
The regex used on UserTagLinkifier contains a negative lookbehind, which is unsupported on Safari.
In order to being able to use the linkifier on Safari, I removed the lookbehind from the regex and refactored the code to do the same thing that the original regex.
I also fixed some user tag tests that were failing.