FIX: IE11 compatibility for readonly check

In some situations, the xhr object is undefined in IE11
2019-12-18 16:57:20 +00:00 · 2019-12-18 16:57:20 +00:00 · fab3bbf705
parent 37c9579a01
commit fab3bbf705
1 changed files with 1 additions and 1 deletions
--- a/app/assets/javascripts/discourse/lib/ajax.js.es6
+++ b/app/assets/javascripts/discourse/lib/ajax.js.es6
@ -103,7 +103,7 @@ export function ajax() {
      run(() => {
        Site.currentProp(
          "isReadOnly",
-          !!xhr.getResponseHeader("Discourse-Readonly")
+          !!(xhr && xhr.getResponseHeader("Discourse-Readonly"))
        );
      });