Not supported in Safari 15.5

[zhe-he]

https://github.com/slevithan/regex/blob/ff7adf5a6f904b5c1c91a544efafb9c174e2baea/src/subroutines.js#L21C1-L28C1

I encountered a problem and found that Safari reported an error. Eventually, I pinpointed it to this location. In comparison to this, I wrote a simple regular expression. The image below shows the normal display and the error reported by Safari.

var capturingDelim = String.raw`\((?!\?)(?!(?<=\(\?\()DEFINE\))`;
new RegExp(String.raw`
| (?<capturingStart>${capturingDelim})
`.replace(/\s+/g, ''), 'gsu');

I directly imported regex/dist/regex.min.js, and I still get the same error when I open it with Safari.

[slevithan]

Thanks for the report. Yes, this is a known issue. Old Safari is not supported, since Regex+ relies on lookbehind which Safari was years late to support compared to other browsers (not until Safari 16.4, released, released 2023-03-27).

I'll leave this open for now, until I investigate if there are things I can do to work around this.