kendo-editor

[Mohamed]

In kendo-editor has issue in arabic language about backspace not working 
if i focused for first time on it working fine but if i focused in any input then focused on it not working 
trying to add any event to catch backspace but event not working .
Thanks
My code 

      <kendo-editor (valueChange)="textChange($event,isArabic)" [value]="mainText"

        [class.n-editor--primary]="primaryBorder">

        <kendo-editor-messages [createLink]="'insertLink' | translate " [dialogCancel]="'Cancel' | translate"

          [dialogInsert]="'insert' | translate" [linkText]="'text' | translate" [linkTitle]="'Title' | translate"

          [linkOpenInNewWindow]="'openLinkInNew' | translate" [linkWebAddress]="'webAddress' | translate">

        </kendo-editor-messages>

        <kendo-toolbar>

          <kendo-toolbar-buttongroup>

            <kendo-toolbar-button kendoEditorBoldButton></kendo-toolbar-button>

            <kendo-toolbar-button kendoEditorItalicButton></kendo-toolbar-button>

            <kendo-toolbar-button kendoEditorUnderlineButton></kendo-toolbar-button>

          </kendo-toolbar-buttongroup>

          <kendo-toolbar-colorpicker [paletteSettings]="{palette:'basic' , columns:5}" kendoEditorForeColor>

          </kendo-toolbar-colorpicker>

          <kendo-toolbar-buttongroup>

            <kendo-toolbar-button kendoEditorCreateLinkButton></kendo-toolbar-button>

            <kendo-toolbar-button kendoEditorUnlinkButton></kendo-toolbar-button>

          </kendo-toolbar-buttongroup>

        </kendo-toolbar>

      </kendo-editor>

eventIsCreated: boolean;

setTexts() {

    this.mainText = this.isArabic ? this.textModel.textAr : this.textModel.textEn;

  }

  public textChange(event, isArabic) {

    event = event.replace("/href/g", "appExternalUrl [href]");

    if (!this.eventIsCreated) {

      this.eventIsCreated = true;

    }

    if (isArabic) {

      this.textModel.textAr = event;

    }

    else {

      this.textModel.textEn = event;

    }

  }