fix(browser): Don't assume window.document is available

packages/browser-utils/src/metrics/types.ts

@@ -1,3 +1,6 @@
 import { GLOBAL_OBJ } from '@sentry/utils';
 
-export const WINDOW = GLOBAL_OBJ as typeof GLOBAL_OBJ & Window;
+export const WINDOW = GLOBAL_OBJ as typeof GLOBAL_OBJ &
+  // document is not available in all browser environments (webworkers). We make it optional so you have to explicitly check for it
+  Omit<Window, 'document'> &
+  Partial<Pick<Window, 'document'>>;

packages/browser-utils/src/metrics/web-vitals/getLCP.ts

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+import { WINDOW } from '../types';
 import { bindReporter } from './lib/bindReporter';
 import { getActivationStart } from './lib/getActivationStart';
 import { getVisibilityWatcher } from './lib/getVisibilityWatcher';
@@ -82,10 +83,12 @@ export const onLCP = (onReport: LCPReportCallback, opts: ReportOpts = {}) => {
       // stops LCP observation, it's unreliable since it can be programmatically
       // generated. See: https://github.com/GoogleChrome/web-vitals/issues/75
       ['keydown', 'click'].forEach(type => {
-        // Wrap in a setTimeout so the callback is run in a separate task
-        // to avoid extending the keyboard/click handler to reduce INP impact
-        // https://github.com/GoogleChrome/web-vitals/issues/383
-        addEventListener(type, () => setTimeout(stopListening, 0), true);
+        if (WINDOW.document) {
+          // Wrap in a setTimeout so the callback is run in a separate task
+          // to avoid extending the keyboard/click handler to reduce INP impact
+          // https://github.com/GoogleChrome/web-vitals/issues/383
+          addEventListener(type, () => setTimeout(stopListening, 0), true);
+        }
       });
 
       onHidden(stopListening);

packages/browser-utils/src/metrics/web-vitals/lib/getVisibilityWatcher.ts

@@ -24,13 +24,13 @@ const initHiddenTime = () => {
   // that visibility state is always 'hidden' during prerendering, so we have
   // to ignore that case until prerendering finishes (see: `prerenderingchange`
   // event logic below).
-  return WINDOW.document.visibilityState === 'hidden' && !WINDOW.document.prerendering ? 0 : Infinity;
+  firstHiddenTime = WINDOW.document!.visibilityState === 'hidden' && !WINDOW.document!.prerendering ? 0 : Infinity;
 };
 
 const onVisibilityUpdate = (event: Event) => {
   // If the document is 'hidden' and no previous hidden timestamp has been
   // set, update it based on the current event data.
-  if (WINDOW.document.visibilityState === 'hidden' && firstHiddenTime > -1) {
+  if (WINDOW.document!.visibilityState === 'hidden' && firstHiddenTime > -1) {
     // If the event is a 'visibilitychange' event, it means the page was
     // visible prior to this change, so the event timestamp is the first
     // hidden time.
@@ -41,7 +41,8 @@ const onVisibilityUpdate = (event: Event) => {
     firstHiddenTime = event.type === 'visibilitychange' ? event.timeStamp : 0;
 
     // Remove all listeners now that a `firstHiddenTime` value has been set.
-    removeChangeListeners();
+    removeEventListener('visibilitychange', onVisibilityUpdate, true);
+    removeEventListener('prerenderingchange', onVisibilityUpdate, true);
   }
 };
 
@@ -54,18 +55,13 @@ const addChangeListeners = () => {
   addEventListener('prerenderingchange', onVisibilityUpdate, true);
 };
 
-const removeChangeListeners = () => {
-  removeEventListener('visibilitychange', onVisibilityUpdate, true);
-  removeEventListener('prerenderingchange', onVisibilityUpdate, true);
-};
-
 export const getVisibilityWatcher = () => {
-  if (firstHiddenTime < 0) {
+  if (WINDOW.document && firstHiddenTime < 0) {
     // If the document is hidden when this code runs, assume it was hidden
     // since navigation start. This isn't a perfect heuristic, but it's the
     // best we can do until an API is available to support querying past
     // visibilityState.
-    firstHiddenTime = initHiddenTime();
+    initHiddenTime();
     addChangeListeners();
   }
   return {

packages/browser-utils/src/metrics/web-vitals/lib/initMetric.ts

@@ -25,9 +25,9 @@ export const initMetric = <MetricName extends MetricType['name']>(name: MetricNa
   let navigationType: MetricType['navigationType'] = 'navigate';
 
   if (navEntry) {
-    if (WINDOW.document.prerendering || getActivationStart() > 0) {
+    if ((WINDOW.document && WINDOW.document.prerendering) || getActivationStart() > 0) {
       navigationType = 'prerender';
-    } else if (WINDOW.document.wasDiscarded) {
+    } else if (WINDOW.document && WINDOW.document.wasDiscarded) {
       navigationType = 'restore';
     } else if (navEntry.type) {
       navigationType = navEntry.type.replace(/_/g, '-') as MetricType['navigationType'];

packages/browser-utils/src/metrics/web-vitals/lib/onHidden.ts

@@ -22,12 +22,15 @@ export interface OnHiddenCallback {
 
 export const onHidden = (cb: OnHiddenCallback) => {
   const onHiddenOrPageHide = (event: Event) => {
-    if (event.type === 'pagehide' || WINDOW.document.visibilityState === 'hidden') {
+    if (event.type === 'pagehide' || (WINDOW.document && WINDOW.document.visibilityState === 'hidden')) {
       cb(event);
     }
   };
-  addEventListener('visibilitychange', onHiddenOrPageHide, true);
-  // Some browsers have buggy implementations of visibilitychange,
-  // so we use pagehide in addition, just to be safe.
-  addEventListener('pagehide', onHiddenOrPageHide, true);
+
+  if (WINDOW.document) {
+    addEventListener('visibilitychange', onHiddenOrPageHide, true);
+    // Some browsers have buggy implementations of visibilitychange,
+    // so we use pagehide in addition, just to be safe.
+    addEventListener('pagehide', onHiddenOrPageHide, true);
+  }
 };

packages/browser-utils/src/metrics/web-vitals/lib/whenActivated.ts

@@ -17,7 +17,7 @@
 import { WINDOW } from '../../types';
 
 export const whenActivated = (callback: () => void) => {
-  if (WINDOW.document.prerendering) {
+  if (WINDOW.document && WINDOW.document.prerendering) {
     addEventListener('prerenderingchange', () => callback(), true);
   } else {
     callback();

packages/browser-utils/src/metrics/web-vitals/onTTFB.ts

@@ -30,9 +30,9 @@ export const TTFBThresholds: MetricRatingThresholds = [800, 1800];
  * @param callback
  */
 const whenReady = (callback: () => void) => {
-  if (WINDOW.document.prerendering) {
+  if (WINDOW.document && WINDOW.document.prerendering) {
     whenActivated(() => whenReady(callback));
-  } else if (WINDOW.document.readyState !== 'complete') {
+  } else if (WINDOW.document && WINDOW.document.readyState !== 'complete') {
     addEventListener('load', () => whenReady(callback), true);
   } else {
     // Queue a task so the callback runs after `loadEventEnd`.

packages/browser/src/tracing/browserTracingIntegration.ts

@@ -450,6 +450,8 @@ function registerInteractionListener(
   };
 
   ['click'].forEach(type => {
-    addEventListener(type, registerInteractionTransaction, { once: false, capture: true });
+    if (WINDOW.document) {
+      addEventListener(type, registerInteractionTransaction, { once: false, capture: true });
+    }
   });
 }