babel-node: ReactComponentTreeDevtool.js causes ReactDOMServer.renderToString to fail

[ian-speers]

While following a server-side react tutorial, I encountered a runtime error caused by ReactComponentTreeDevtool. Specifically, the purgeDeep function seems to be problematic under certain conditions (ReactComponentTreeDevtool.js line 47):

User Code:

Stack Trace:

Offending Code:

Resolution: Adding a check for undefined childIDs before the traversal seems to resolve the issue (see below).

Additional:
OS: OS X Yosemite (10.10.5)
Node: 4.4.7
Run on: babel-node (via babel-cli 6.11.4 )

Let me know if there's any additional information I should provide (e.g. dev dependencies). Thanks!

[sophiebits]

Despite the name, this error is actually part of React proper, not the devtools repo. Do you mind re-filing at https://github.com/facebook/react?

[ian-speers]

Sure thing. Link