Use parse instead of parseJSON. (#5869)

src/static/js/admin/settings.js

@@ -62,7 +62,7 @@ const isJSONClean = (data) => {
   // this is a bit naive. In theory some key/value might contain the sequences ',]' or ',}'
   cleanSettings = cleanSettings.replace(',]', ']').replace(',}', '}');
   try {
-    return typeof JSON.parseJSON(cleanSettings) === 'object';
+    return typeof JSON.parse(cleanSettings) === 'object';
   } catch (e) {
     return false; // the JSON failed to be parsed
   }

src/static/js/vendors/farbtastic.js

@@ -33,7 +33,7 @@ $._farbtastic = function (container, options) {
   fb.linkTo = function (callback) {
     // Unbind previous nodes
     if (typeof fb.callback == 'object') {
-      $(fb.callback).off('keyup').on('keyup').on('keyup', fb.updateValue);
+      $(fb.callback).off('keyup').on('keyup', fb.updateValue);
     }
 
     // Reset color