Put a check in getFrameOffset

6 years ago · aedd1f4532
1 changed files with 3 additions and 4 deletions
--- a/src/canvas/view/CanvasView.js
+++ b/src/canvas/view/CanvasView.js
@ -180,10 +180,9 @@ export default Backbone.View.extend({
   */
  getFrameOffset(el) {
    if (!this.frmOff || el) {
-      const frEl = el
-        ? el.ownerDocument.defaultView.frameElement
-        : this.frame.el;
-      this.frmOff = this.offset(frEl);
+      const frame = this.frame.el;
+      const frEl = el ? el.ownerDocument.defaultView.frameElement : frame;
+      this.frmOff = this.offset(frEl || frame);
    }
    return this.frmOff;
  },