Bug 1531584 - catch promise error when updating a11y menu item when DOMWalker connection is already closed. r=gl

Differential Revision: https://phabricator.services.mozilla.com/D23321
2019-03-13 15:44:55 +00:00
parent b78bcc19ea
commit 372b28bce4
1 changed files with 4 additions and 2 deletions
--- a/devtools/client/inspector/markup/markup-context-menu.js
+++ b/devtools/client/inspector/markup/markup-context-menu.js
@@ -757,8 +757,10 @@ class MarkupContextMenu {
  }

  async _updateA11YMenuItem(menuItem) {
-    const hasMethod = await this.target.actorHasMethod("domwalker",
-                                                       "hasAccessibilityProperties");
+    const hasMethod = await this.target.actorHasMethod(
+      "domwalker", "hasAccessibilityProperties").catch(
+        // Connection to DOMWalker might have been already closed.
+        error => console.warn(error));
    if (!hasMethod) {
      return;
    }