Fix cookie settings page crash in IE11

URL is unsupported in IE11, so use try/catch for this value
alphagov · Mar 4, 2024 · 6a096f6 · 6a096f6
1 parent 6767a8d
commit 6a096f6
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -11,6 +11,7 @@
 
 * Allow custom text for GA4 scroll tracker ([PR #3896](https://github.com/alphagov/govuk_publishing_components/pull/3896))
 * Ensure analytics stops firing if a user disables usage cookies on our cookie settings page ([PR #3893](https://github.com/alphagov/govuk_publishing_components/pull/3893))
+* Fix cookie settings page crash in IE11 ([PR #3894](https://github.com/alphagov/govuk_publishing_components/pull/3894))
 
 ## 37.5.1
 

diff --git a/app/assets/javascripts/govuk_publishing_components/lib/cookie-settings.js b/app/assets/javascripts/govuk_publishing_components/lib/cookie-settings.js
@@ -107,7 +107,13 @@ window.GOVUK.Modules = window.GOVUK.Modules || {};
   }
 
   CookieSettings.prototype.getReferrerLink = function () {
-    return document.referrer ? new URL(document.referrer).pathname : false
+    var documentReferrer = false
+    try {
+      documentReferrer = document.referrer || new URL(document.referrer).pathname
+    } catch (e) {
+      console.error('Error grabbing referrer for cookie settings', window.location, e)
+    }
+    return documentReferrer
   }
 
   Modules.CookieSettings = CookieSettings