Fix OneTrust cookie banner not persisting on cbl-reactnative.dev.

The Couchbase OneTrust script is registered for couchbase.com, so consent cookies were never written on this domain and the banner reappeared on every refresh.

Author: jayant-dhingra-cb

docusaurus.config.js

@@ -25,23 +25,26 @@ const config = {
   onBrokenLinks: 'warn',
   onBrokenMarkdownLinks: 'warn',
 
-  // OneTrust Cookies Consent Notice for couchbase.com
+  // OneTrust cookie consent (Couchbase script; see static/js/onetrust-wrapper.js
+  // for cbl-reactnative.dev persistence workaround).
   headTags: [
     {
       tagName: 'script',
       attributes: {
         src: 'https://cdn.cookielaw.org/scripttemplates/otSDKStub.js',
         type: 'text/javascript',
         charset: 'UTF-8',
-        'data-domain-script': '748511ff-10bf-44bf-88b8-36382e5b5fd9',
+        'data-domain-script':
+          process.env.ONETRUST_DOMAIN_SCRIPT ||
+          '748511ff-10bf-44bf-88b8-36382e5b5fd9',
       },
     },
     {
       tagName: 'script',
       attributes: {
+        src: '/js/onetrust-wrapper.js',
         type: 'text/javascript',
       },
-      innerHTML: 'function OptanonWrapper() {}',
     },
     {
       tagName: 'script',

static/js/onetrust-wrapper.js

@@ -0,0 +1,70 @@
+/**
+ * OneTrust callback for cbl-reactnative.dev.
+ *
+ * The Couchbase OneTrust production script (748511ff-…) is registered for
+ * couchbase.com, so OneTrust cannot write OptanonAlertBoxClosed on this
+ * domain. Persist consent cookies on the current host when the SDK records
+ * a choice but fails to store them.
+ */
+function OptanonWrapper() {
+  if (typeof OneTrust === 'undefined') {
+    return;
+  }
+
+  var host = window.location.hostname;
+  var isCouchbaseDomain =
+    host === 'couchbase.com' || host.endsWith('.couchbase.com');
+
+  function hasConsentGroups() {
+    return (
+      typeof OptanonActiveGroups !== 'undefined' &&
+      OptanonActiveGroups.replace(/,/g, '').length > 0
+    );
+  }
+
+  function hasAlertCookie() {
+    return document.cookie.indexOf('OptanonAlertBoxClosed=') !== -1;
+  }
+
+  function persistConsentCookies() {
+    if (isCouchbaseDomain || hasAlertCookie()) {
+      return;
+    }
+
+    if (!hasConsentGroups() && OneTrust.IsAlertBoxClosed && OneTrust.IsAlertBoxClosed()) {
+      return;
+    }
+
+    if (!hasConsentGroups()) {
+      return;
+    }
+
+    var expiry = new Date();
+    expiry.setFullYear(expiry.getFullYear() + 1);
+    var expiryStr = 'expires=' + expiry.toUTCString();
+    var secure = window.location.protocol === 'https:' ? '; Secure' : '';
+
+    document.cookie =
+      'OptanonAlertBoxClosed=' +
+      new Date().toISOString() +
+      '; path=/; ' +
+      expiryStr +
+      '; SameSite=Lax' +
+      secure;
+
+    document.cookie =
+      'OptanonConsent=' +
+      'isGpcEnabled=0&datestamp=' +
+      encodeURIComponent(new Date().toString()) +
+      '&version=202504.1.0&groups=' +
+      encodeURIComponent(OptanonActiveGroups) +
+      '&hosts=&consentId=&interactionCount=1&landingPath=NotLandingPage&AwaitingReconsent=false' +
+      '; path=/; ' +
+      expiryStr +
+      '; SameSite=Lax' +
+      secure;
+  }
+
+  OneTrust.OnConsentChanged(persistConsentCookies);
+  persistConsentCookies();
+}