# Pastebin Quq8uM3c
Error ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ root/static/scripts/guess-case/modes.js:140:29

Cannot call replaceMatch with matches bound to matches because null [1] is incompatible with array type [2].
[incompatible-call]

     root/static/scripts/guess-case/modes.js
      137│         }
      138│       }
      139│     } else if ((matches = output.match(regex)) !== null) {
      140│       output = replaceMatch(matches, output, regex, replacement);
      141│     }
      142│   });
      143│

     /tmp/flow/flowlib_9220d3dbcf1fb749_1000/core.js
 [2] 1067│ type RegExp$matchResult = Array<string> & {
         :
 [1] 1147│     match(regexp: string | RegExp): RegExp$matchResult | null;