There are good security reasons, among others to filter some unicode; Homoglyph : https://en.m.wikipedia.org/wiki/Homoglyph https://en.m.wikipedia.org/wiki/Hom

There are good security reasons, among others to filter some unicode; Homoglyph : https://en.m.wikipedia.org/wiki/Homoglyph https://en.m.wikipedia.org/wiki/Homoglyph UniCode 'Confusables' Visual-Spoofing : https://unicode.org/reports/tr36/#visual_spoofing https://unicode.org/reports/tr36/#visual_spoofing The Invisible JavaScript Backdoor : https://certitude.consulting/blog/en/invisible-backdoor/ https://certitude.consulting/blog/en/invisible-backdoor/ >There are many other characters that look similar to the ones used in code which may be used for such proposes, (e.g. “／”, “−”, “＋”, “⩵”, “”, “⫽”, “꓿”, “∗”). Unicode calls these characters “confusables”.<*