as it's not possible that modes contains a whitespace

src/trigger/umode.js

@@ -51,7 +51,6 @@ var processModes = modes => {
   var prefix = '+', modeArr = [];
   modes.split('').forEach(token => {
     if(token === '-' || token === '+') {prefix = token; return;}
-    if(token === ' ') return;
     modeArr.push(prefix + token);
   });
   return modeArr;