Easy breadcumps uses "|" as preg_match delimiter in EasyBreadcrumbBuilder.php. This prevents using the vertical bar to form patterns like (abc|def) and according to what follows | (in my exemple "d") it will throw a "Warning : preg_match(): Unknown modifier 'd' etc."
I suggest using "!" instead of "|".
if (
($is_regex && preg_match("!" . $custom_path . "!", $path, $regex_group_matches))
|| ($is_regex && preg_match("!" . $custom_path . "!", $internal_path, $regex_group_matches))
|| (!$is_regex && $path == $custom_path)
|| (!$is_regex && $internal_path == $custom_path)
) {
Active
2.0
Code
You have already done the changes, i have assigned this issue beacuse i didn't see any MR.