[web] Ignore Propensity Network errors (#26840)

* Test the scripts by adding fake ids

* Test Propensity errors

* Don't send Sentry event if `isPropensityNetworkError`

* Revert "Test Propensity errors"

This reverts commit 7052ca20d0bee3bb32b39fb90c473458a4375d7b.

* Revert "Test the scripts by adding fake ids"

This reverts commit 2ac797aadf24359917a10119155c5e41935a7482.

GitOrigin-RevId: 03c1e63e359d41ad83ce1ae5cc1063f1c59d0b4e

services/web/frontend/js/infrastructure/error-reporter.ts

@@ -2,6 +2,7 @@
 import getMeta from '../utils/meta'
 import OError from '@overleaf/o-error'
 import { debugConsole } from '@/utils/debugging'
+import type { ErrorEvent } from '@sentry/types/types/event'
 
 const {
   sentryAllowedOriginRegex,
@@ -12,6 +13,21 @@ const {
 
 const reporterPromise = sentryDsn ? sentryReporter() : nullReporter()
 
+const isPropensityNetworkError = (err: ErrorEvent) => {
+  const errorBreadcrumbs = err.breadcrumbs?.filter(b => b.level === 'error')
+
+  if (!errorBreadcrumbs || errorBreadcrumbs.length !== 1) {
+    // don't ignore Propensity if there are more errors to report
+    return false
+  }
+
+  return Boolean(
+    errorBreadcrumbs[0].data?.url.startsWith(
+      'https://analytics.propensity.com/'
+    )
+  )
+}
+
 function sentryReporter() {
   return (
     import(/* webpackMode: "eager" */ '@sentry/browser')
@@ -86,6 +102,10 @@ function sentryReporter() {
               }
             }
 
+            if (isPropensityNetworkError(event)) {
+              return null
+            }
+
             return event
           },
         })