Google Analytics storyMissing undefined

[claudio-moya]

Describe the bug
The plugin trigger an error exception when there are missed stories.

To Reproduce
Steps to reproduce the behavior:

1. Use default setup using type react.
2. Enable the addon in addons.js (import '@storybook/addon-google-analytics/register';)
3. Run the project using the root localhost path (ex.: http://localhost:8080)
4. After the router redirects you to any of the stories, the error is triggered.
5. Open the developers console and see the error:
   TypeError: Cannot read property 'id' of undefined

Expected behavior
Run the project and don't show an error during the router changes from root path to stories path.

Screenshots

Code snippets
The issue is located at register.ts due to the id variable is undefined.

api.on(STORY_MISSING, ({ id }: { id: string }) => { //<-- id is undefined here
    ReactGA.exception({
      description: `attempted to render ${id}, but it is missing`,
      fatal: false,
    });
  });

System:

• OS: MacOS
• Device: Macbook Pro Retina
• Browser: Chrome, Safari, Firefox
• Framework: react
• Addons: addon-google-analytics
• Version: v5.1.9

Additional context

[chris-dura]

I’m experiencing the same thing for @storybook/html

[shilman]

ZOMG!! I just released https://github.com/storybookjs/storybook/releases/tag/v5.2.0-alpha.43 containing PR #7410 that references this issue. Upgrade today to try it out!

You can find this prerelease on the @next NPM tag.

[shilman]

Great Caesar's ghost!! I just released https://github.com/storybookjs/storybook/releases/tag/v5.1.10 containing PR #7410 that references this issue. Upgrade today to try it out!