Function isTabAlive

background/tab-runtime.js:33–45

(source)

    }

    async function isTabAlive(source) {
      const registry = await getTabRegistry();
      const entry = registry[source];
      if (!entry) return false;
      try {
        await chrome.tabs.get(entry.tabId);
        return true;
      } catch {
        registry[source] = null;
        await setState({ tabRegistry: registry });
        return false;
      }
    }

    async function getTabId(source) {
      const registry = await getTabRegistry();