Issue #2589779 by Jelle_S, Wim Leers: Uncaught TypeError: Cannot set property...

Issue #2589779 by Jelle_S, Wim Leers: Uncaught TypeError: Cannot set property 'float' of undefined when switching text formats

core/modules/ckeditor/js/plugins/drupalimage/plugin.js

@@ -32,6 +32,7 @@
         // Override requiredContent & allowedContent.
         widgetDefinition.requiredContent = new CKEDITOR.style({
           element: 'img',
+          styles: {},
           attributes: {
             'alt': '',
             'src': '',
@@ -43,6 +44,7 @@
         });
         var allowedContentDefinition = {
           element: 'img',
+          styles: {},
           attributes: {
             '!data-entity-type': '',
             '!data-entity-uuid': ''

core/modules/ckeditor/js/plugins/drupallink/plugin.js

@@ -15,6 +15,7 @@
       editor.addCommand('drupallink', {
         allowedContent: new CKEDITOR.style({
           element: 'a',
+          styles: {},
           attributes: {
             '!href': '',
             'target': ''
@@ -22,6 +23,7 @@
         }),
         requiredContent: new CKEDITOR.style({
           element: 'a',
+          styles: {},
           attributes: {
             href: ''
           }