microsoft/playwright · error · Error

Unable to fetch sizes for failed request

Error message

Unable to fetch sizes for failed request

What it means

Error "Unable to fetch sizes for failed request" thrown in microsoft/playwright.

Source

Thrown at packages/playwright-core/src/client/network.ts:264

    return this._redirectedTo;
  }

  failure(): { errorText: string; } | null {
    if (this._failureText === null)
      return null;
    return {
      errorText: this._failureText
    };
  }

  timing(): ResourceTiming {
    return this._timing;
  }

  async sizes(): Promise<RequestSizes> {
    const response = await this.response();
    if (!response)
      throw new Error('Unable to fetch sizes for failed request');
    return (await response._channel.sizes({}, kNoTimeout)).sizes;
  }

  _setResponseEndTiming(responseEndTiming: number) {
    this._timing.responseEnd = responseEndTiming;
    if (this._timing.responseStart === -1)
      this._timing.responseStart = responseEndTiming;
  }

  _finalRequest(): Request {
    return this._redirectedTo ? this._redirectedTo._finalRequest() : this;
  }

  _applyFallbackOverrides(overrides: FallbackOverrides) {
    if (overrides.url)
      this._fallbackOverrides.url = overrides.url;
    if (overrides.method)
      this._fallbackOverrides.method = overrides.method;

View on GitHub (pinned to c8fc3bf8d3)

When it happens

Trigger: Thrown at packages/playwright-core/src/client/network.ts:264 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of microsoft/playwright@c8fc3bf8d3 (2026-08-12). Data as JSON: /api/errors/7d7a80dfd0b23b10. Report an issue: GitHub.