fix: editor view mode

app/components/SimpleEditor/ContainerEditor.js

@@ -36,8 +36,7 @@ class ContainerEditor extends SubstanceContainerEditor {
     this.el.focus() // TODO notworking
 
     if (this.isReadOnlyMode()) {
-      const documentSession = this.getDocumentSession()
-      documentSession.on('didUpdate', this.disableToolbar, this)
+      this.editorSession.onUpdate('', this.disableToolbar, this)
 
       this.addTargetToLinks()
     }