Fix flyout scrolling exception

code-dot-org · Jul 16, 2022 · e83752b · e83752b
1 parent 7de3f7b
commit e83752b
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/core/ui/block_space/flyout.js b/core/ui/block_space/flyout.js
@@ -281,6 +281,12 @@ Blockly.Flyout.prototype.getHeight = function() {
  */
 Blockly.Flyout.prototype.setMetrics_ = function(yRatio) {
   var metrics = this.getMetrics_();
+
+  // If the flyout is now hidden, don't do anything else.
+  if (metrics === null) {
+    return;
+  }
+
   if (goog.isNumber(yRatio.y)) {
     // TODO(bjordan+bbuchanan): needs to change?
     this.blockSpace_.yOffsetFromView =