base64.js line 134 ``` var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g; ``` should be ``` var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFF]|[^\x00-\x7F]/g; ``` `DFFFF` -> `DFFF`