microsoft/playwright · error · Error

Method not implemented

Error message

Method not implemented

What it means

Error "Method not implemented" thrown in microsoft/playwright.

Source

Thrown at packages/playwright-core/src/server/webkit/webview/wvPage.ts:765

      } as any;
    }
    return `(${polyfill.toString()})();`;
  }

  async _updateBootstrapScript(): Promise<void> {
    await this._updateState('Page.setBootstrapScript', { source: this._calculateBootstrapScript() });
  }

  async closePage(): Promise<void> {
    await this._session.sendMayFail('Runtime.evaluate', {
      expression: 'window.close()',
      emulateUserGesture: true,
    } as any);
    this._session.connection.close();
  }

  async setBackgroundColor(color?: { r: number; g: number; b: number; a: number; }): Promise<void> {
    throw new Error('Method not implemented');
  }

  private validateScreenshotDimension(side: number, omitDeviceScaleFactor: boolean) {
    // Cairo based implementations (Linux and Windows) have hard limit of 32767
    // (see https://github.com/microsoft/playwright/issues/16727).
    if (process.platform === 'darwin')
      return;
    if (!omitDeviceScaleFactor && this._page.browserContext._options.deviceScaleFactor)
      side = Math.ceil(side * this._page.browserContext._options.deviceScaleFactor);
    if (side > 32767)
      throw new Error('Cannot take screenshot larger than 32767 pixels on any dimension');
  }

  async takeScreenshot(progress: Progress, format: string, documentRect: types.Rect | undefined, viewportRect: types.Rect | undefined, quality: number | undefined, fitsViewport: boolean, scale: 'css' | 'device'): Promise<Buffer> {
    const rect = (documentRect || viewportRect)!;
    const omitDeviceScaleFactor = scale === 'css';
    if (omitDeviceScaleFactor)
      throw new Error('css screenshots are not implemented');

View on GitHub (pinned to c8fc3bf8d3)

When it happens

Trigger: Thrown at packages/playwright-core/src/server/webkit/webview/wvPage.ts:765 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/b7d260bba5500e98. Report an issue: GitHub.