Describe the bug
The react demo is broken.
When I clicke it, it just shows:

404: NOT_FOUND
Code: RESOURCE_NOT_FOUND
ID: lhr1:49fkm-1579785960719-17bc0f2c5c01

To Reproduce
Steps to reproduce the behavior:

1. Go to https://storybook.js.org/docs/basics/live-examples/
2. Click on 'React'

Expected behavior
Should show react demo of storybook

Screenshots
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Code snippets
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System:
Please paste the results of npx -p @storybook/cli@next sb info here.

Additional context
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