Do not track page titles via snowplow

app/assets/javascripts/tracking/index.js

@@ -46,7 +46,10 @@ export function initDefaultTrackers() {
   // must be after enableActivityTracking
   const standardContext = getStandardContext();
   const experimentContexts = getAllExperimentContexts();
-  window.snowplow('trackPageView', null, [standardContext, ...experimentContexts]);
+  // To not expose personal identifying information, the page title is hardcoded as `GitLab`
+  // See: https://gitlab.com/gitlab-org/gitlab/-/issues/345243
+  window.snowplow('trackPageView', 'GitLab', [standardContext, ...experimentContexts]);
+  window.snowplow('setDocumentTitle', 'GitLab');
 
   if (window.snowplowOptions.formTracking) {
     Tracking.enableFormTracking(opts.formTrackingConfig);

doc/development/snowplow/implementation.md

@@ -397,6 +397,7 @@ Before you test frontend events in development, you must:
 
 All URLs are pseudonymized. The entity identifier [replaces](https://docs.snowplowanalytics.com/docs/collecting-data/collecting-from-own-applications/javascript-trackers/javascript-tracker/javascript-tracker-v2/tracker-setup/other-parameters-2/#Setting_a_custom_page_URL_and_referrer_URL) personally identifiable
 information (PII). PII includes usernames, group, and project names.
+Page titles are hardcoded as `GitLab` for the same reason.
 
 #### Snowplow Analytics Debugger Chrome Extension
 

doc/development/snowplow/schemas.md

@@ -30,6 +30,7 @@ The [`StandardContext`](https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/g
 Frontend events include a [web-specific schema](https://docs.snowplowanalytics.com/docs/understanding-your-pipeline/canonical-event/#Web-specific_fields) provided by Snowplow.
 All URLs are pseudonymized. The entity identifier [replaces](https://docs.snowplowanalytics.com/docs/collecting-data/collecting-from-own-applications/javascript-trackers/javascript-tracker/javascript-tracker-v2/tracker-setup/other-parameters-2/#Setting_a_custom_page_URL_and_referrer_URL) personally identifiable
 information (PII). PII includes usernames, group, and project names.
+Page titles are hardcoded as `GitLab` for the same reason.
 
 | Field Name               | Required            | Type      | Description                                                                                                                      |
 |--------------------------|---------------------|-----------|----------------------------------------------------------------------------------------------------------------------------------|
@@ -105,7 +106,7 @@ information (PII). PII includes usernames, group, and project names.
 | `os_name`                  | **{dotted-circle}** | string    | Name of operating system                                                                                                         |
 | `os_timezone`              | **{dotted-circle}** | string    | Client operating system time zone                                                                                                 |
 | `page_referrer`            | **{dotted-circle}** | string    | Referrer URL                                                                                                                     |
-| `page_title`               | **{dotted-circle}** | string    | Page title                                                                                                                       |
+| `page_title`               | **{dotted-circle}** | string    | To not expose personal identifying information, the page title is hardcoded as `GitLab`                                          |
 | `page_url`                 | **{dotted-circle}** | string    | Page URL                                                                                                                         |
 | `page_urlfragment`         | **{dotted-circle}** | string    | Fragment aka anchor                                                                                                              |
 | `page_urlhost`             | **{dotted-circle}** | string    | Host aka domain                                                                                                                  |

spec/frontend/tracking/tracking_initialization_spec.js

@@ -81,7 +81,8 @@ describe('Tracking', () => {
     it('should activate features based on what has been enabled', () => {
       initDefaultTrackers();
       expect(snowplowSpy).toHaveBeenCalledWith('enableActivityTracking', 30, 30);
-      expect(snowplowSpy).toHaveBeenCalledWith('trackPageView', null, [standardContext]);
+      expect(snowplowSpy).toHaveBeenCalledWith('trackPageView', 'GitLab', [standardContext]);
+      expect(snowplowSpy).toHaveBeenCalledWith('setDocumentTitle', 'GitLab');
       expect(snowplowSpy).not.toHaveBeenCalledWith('enableFormTracking');
       expect(snowplowSpy).not.toHaveBeenCalledWith('enableLinkClickTracking');
 
@@ -130,7 +131,7 @@ describe('Tracking', () => {
 
       it('includes those contexts alongside the standard context', () => {
         initDefaultTrackers();
-        expect(snowplowSpy).toHaveBeenCalledWith('trackPageView', null, [
+        expect(snowplowSpy).toHaveBeenCalledWith('trackPageView', 'GitLab', [
           standardContext,
           ...experimentContexts,
         ]);