[7.51.2] White screen of death on first load, after refreshing no error

[robd003]

Is there an existing issue for this?

• I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• I have reviewed the documentation https://docs.sentry.io/
• I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/react

SDK Version

7.51.2

Framework Version

React 16.14.0

Link to Sentry event

https://allfactors.sentry.io/issues/4182514235/?project=6446139&query=is%3Aunresolved&referrer=issue-stream&stream_index=0

SDK Setup

Sentry.init({
  dsn: process.env.REACT_APP_SENTRY_DSN,
  integrations: [new BrowserTracing()],

  release: `allfactors-${generatedGitInfo.gitBranch}@${generatedGitInfo.gitCommitHash}`,
  // Set tracesSampleRate to 1.0 to capture 100%
  // of transactions for performance monitoring.
  // We recommend adjusting this value in production
  tracesSampleRate: 1.0,
});

Steps to Reproduce

1. Login to app
2. White screen of death
3. Refresh page and everything works

Expected Result

1. Login to app
2. Page renders normally

Actual Result

{
arguments: [
{
message: Cannot read properties of undefined (reading '0'), 
name: TypeError, 
stack: 
TypeError: Cannot read properties of undefined (reading '0')
    at n.external (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1482278)
    at n.value (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1445772)
    at n.value (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1451866)
    at Object.afterEvent (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1452769)
    at jP (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1270302)
    at e.value (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1391848)
    at e.value (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1391604)
    at e.value (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1413083)
    at e.value (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1413757)
    at e.value (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1405098)
    at https://beta.allfactors.com/static/js/main.b673dc2f.js:2:1481616
    at cs (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:276272)
    at Sc (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:295161)
    at t.unstable_runWithPriority (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:417313)
    at Gi (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:237927)
    at kc (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:294918)
    at https://beta.allfactors.com/static/js/main.b673dc2f.js:2:294829
    at F (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:416251)
    at _.port1.onmessage (https://beta.allfactors.com/static/js/main.b673dc2f.js:2:415007)
}
], 
logger: console
}

[lforst]

Hi, can you please share a reproduction example? Thanks!

[AbhiPrasad]

From looking at the linked issue - the error also comes from SDK version 7.31.0:

Perhaps it's an old version of the site being used?

[robd003]

Resolved this with a code change to our app, not a Sentry issue at all. Sorry for the false alarm!