GoogleChrome/lighthouse · error · LighthouseError

TARGET_CRASHED

TARGET_CRASHED

Error message

Browser tab has unexpectedly crashed.

What it means

Error "Browser tab has unexpectedly crashed." thrown in GoogleChrome/lighthouse.

Source

Thrown at core/lib/lh-error.js:430

   * Requires an additional `artifactName` field for translation.
  */
  MISSING_REQUIRED_ARTIFACT: {
    code: 'MISSING_REQUIRED_ARTIFACT',
    message: UIStrings.missingRequiredArtifact,
  },

  /**
   * Error internal to Runner used when an artifact required for an audit was an error.
   * Requires additional `artifactName` and `errorMessage` fields for translation.
  */
  ERRORED_REQUIRED_ARTIFACT: {
    code: 'ERRORED_REQUIRED_ARTIFACT',
    message: UIStrings.erroredRequiredArtifact,
  },

  /** The page has crashed and will no longer respond to 99% of CDP commmands. */
  TARGET_CRASHED: {
    code: 'TARGET_CRASHED',
    message: UIStrings.targetCrashed,
    lhrRuntimeError: true,
  },

  // Hey! When adding a new error type, update lighthouse-result.proto too.
  // Only necessary for runtime errors, which come from artifacts or pageLoadErrors.
};

/** @type {Record<keyof typeof ERRORS, LighthouseErrorDefinition>} */
LighthouseError.errors = ERRORS;
LighthouseError.NO_ERROR = 'NO_ERROR';
LighthouseError.UNKNOWN_ERROR = 'UNKNOWN_ERROR';

export {LighthouseError, UIStrings};

View on GitHub (pinned to 9515cd4e58)

Solutions

1. Re-run Lighthouse; tab crashes are often transient.
2. Check Chrome's chrome://crashes for details about the crash.
3. Free system memory or disable extensions that may destabilize the tab.

When it happens

Trigger: Raised when the browser tab crashes unexpectedly during a Lighthouse run.

Common situations: See trigger scenarios.

AI-assisted analysis of GoogleChrome/lighthouse@9515cd4e58 (2026-08-13). Data as JSON: /api/errors/4041e20ae834dc1f. Report an issue: GitHub.