Use replace() instead of replaceAll()

replaceAll() is not supported in IE11. Instead you can use replace() as long as you have a global regex pattern, which we already have in this case.

CHANGELOG.md

@@ -12,6 +12,7 @@
 * Add GA4 tracking to the emergency banner ([PR #3549](https://github.com/alphagov/govuk_publishing_components/pull/3549))
 * Ensure file attachments have the GA4 event_name 'file_download' ([PR #3553](https://github.com/alphagov/govuk_publishing_components/pull/3553))
 * Add GA4 tracking to the phase banner ([PR #3552](https://github.com/alphagov/govuk_publishing_components/pull/3552))
+* Use replace() instead of replaceAll() in removeCrossDomainParams() ([PR #3555](https://github.com/alphagov/govuk_publishing_components/pull/3555))
 
 ## 35.13.2
 

app/assets/javascripts/govuk_publishing_components/analytics-ga4/ga4-core.js

@@ -169,10 +169,10 @@ window.GOVUK.analyticsGa4 = window.GOVUK.analyticsGa4 || {};
       removeCrossDomainParams: function (href) {
         if (href.indexOf('_ga') !== -1 || href.indexOf('_gl') !== -1) {
           // _ga & _gl are values needed for cross domain tracking, but we don't want them included in our click tracking.
-          href = href.replaceAll(/_g[al]=([^&]*)/g, '')
+          href = href.replace(/_g[al]=([^&]*)/g, '')
 
           // The following code cleans up inconsistencies such as gov.uk/&&, gov.uk/?&hello=world, gov.uk/?, and gov.uk/&.
-          href = href.replaceAll(/(&&)+/g, '&')
+          href = href.replace(/(&&)+/g, '&')
           href = href.replace('?&', '?')
           if (this.stringEndsWith(href, '?') || this.stringEndsWith(href, '&')) {
             href = href.substring(0, href.length - 1)