garrytan/gstack · error · Error

Cannot recreate context in headed mode. Use disconnect first

Error message

Cannot recreate context in headed mode. Use disconnect first.

What it means

Error "Cannot recreate context in headed mode. Use disconnect first." thrown in garrytan/gstack.

Source

Thrown at browse/src/browser-manager.ts:1398

    // If no pages were saved, create a blank one
    if (this.pages.size === 0) {
      await this.newTab();
    } else {
      this.activeTabId = activeId ?? [...this.pages.keys()][0];
    }

    // Clear refs — pages are new, locators are stale
    this.clearRefs();
  }

  /**
   * Recreate the browser context to apply user agent changes.
   * Saves and restores cookies, localStorage, sessionStorage, and open pages.
   * Falls back to a clean slate on any failure.
   */
  async recreateContext(): Promise<string | null> {
    if (this.connectionMode === 'headed') {
      throw new Error('Cannot recreate context in headed mode. Use disconnect first.');
    }
    if (!this.browser || !this.context) {
      throw new Error('Browser not launched');
    }

    try {
      // 1. Save state
      const state = await this.saveState();

      // 2. Close old pages and context
      for (const page of this.pages.values()) {
        await page.close().catch(() => {});
      }
      this.pages.clear();
      this.tabSessions.clear();
      await this.context.close().catch(() => {});

      // 3. Create new context with updated settings

View on GitHub (pinned to 94993f7401)

When it happens

Trigger: Thrown at browse/src/browser-manager.ts:1398 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of garrytan/gstack@94993f7401 (2026-08-12). Data as JSON: /api/errors/b612bb3f5b9278a9. Report an issue: GitHub.