Sentry BrowserTracing causes Googlebot rendering failures

[dalnoki]

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/nextjs

SDK Version

10.39.0

Framework Version

Link to Sentry event

Reproduction Example/SDK Setup

Steps to Reproduce

Sentry's tracing instrumentation interferes with Googlebot's page rendering, causing Google Search Console to show incomplete or broken renders. Blocking the Sentry chunk in robots.txt resolves the rendering issue.

Expected Result

Googlebot should be able to render the page fully and correctly regardless of whether Sentry's tracing instrumentation is active

Actual Result

When the Sentry tracing chunk is loaded, Googlebot produces an incomplete or broken render of the page.

Additional Context

I'll add the link to the actual chunk internally.

Priority

_{React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.}

[linear-code]

JS-1873