FIX: fails gracefully if :scope is not handled by a browser (#9529)

discourse · Apr 23, 2020 · be1b7f7 · be1b7f7
1 parent 7a2e8d3
commit be1b7f7
Showing 1 changed file with 9 additions and 3 deletions.
diff --git a/app/assets/javascripts/discourse/app/initializers/copy-codeblocks.js b/app/assets/javascripts/discourse/app/initializers/copy-codeblocks.js
@@ -113,9 +113,15 @@ export default {
           return;
         }
 
-        const commands = postElements[0].querySelectorAll(
-          ":scope > pre > code, :scope :not(article):not(blockquote) > pre > code"
-        );
+        let commands = [];
+        try {
+          commands = postElements[0].querySelectorAll(
+            ":scope > pre > code, :scope :not(article):not(blockquote) > pre > code"
+          );
+        } catch (e) {
+          // :scope is probably not supported by this browser
+          commands = [];
+        }
 
         const post = helper.getModel();