g: global; find all matches, not just the first.i: case-insensitive.m: multiline; ^ and $ match each line.s: dotall; . also matches newlines.u: unicode; full Unicode & \u{…} escapes.y: sticky; match must start at lastIndex.In Replace, $1, $2… reference capture groups; $& is the whole match.
Showing the first 50 of matches.
Turn on replace to substitute matched text.
Test string is too long to include in the URL.