Issue #3341337 by matthiasm11: Scrolls to wrong position

src/Ajax/OpenIframeCommand.php

@@ -26,11 +26,9 @@ class OpenIframeCommand extends OpenDialogCommand {
    */
   public function render(): array {
     $this->dialogOptions['modal'] = isset($this->dialogOptions['modal']) && $this->dialogOptions['modal'];
-    $this->setDialogOption('autoResize', FALSE);
-    $this->setDialogOption('resizable', TRUE);
-    $this->setDialogOption('draggable', TRUE);
-    $this->setDialogOption('width', 1000);
-    $this->setDialogOption('height', 900);
+    $this->setDialogOption('autoResize', TRUE);
+    $this->setDialogOption('width', '80%');
+    $this->setDialogOption('height', 'auto');
 
     return [
       'command' => 'openIframe',