Do you want to request a feature or report a bug?
This is a bug
What is the current behavior?
After cloning the master branch of the Draft.js repository, running npm update and npm run build in the main directory, and opening the example file examples/draft-0-10-0/color/color.html the example editor does not render and the console shows an error:
'Draft' is undefined
Function code (4) (15, 1)
The same example file will render fine in Chrome and Firefox on the same Windows 10 laptop.
What is the expected behavior?
I expect the example to render with no errors.
Which versions of Draft.js, and which browser / OS are affected by this issue? Did this work in previous versions of Draft.js?
Master branch of Draft.js on Internet Explorer and Edge in Windows 10.
This is blocking me from testing the v0.11.0-alpha branch of Draft before releasing it on npm.
in the course of debugging something else i tried triggering this from the latest master commit using the steps outlined here and proxying localhost through browserstack, one time the build failed i got exactly the 'Draft' is undefined error, the second time i reran the build and now i just get the unique key error. i'm not sure why the draft build failed though. ¯_(ツ)_/¯

For better or worse, it seems to persist on my laptop. I have re-run the build a couple of times. But it gives me a chance to figure out the cause at least.
So I was editing the path to the Draft.js file and it just started working. I still don't know why. For now I am unblocked to manually test the 0.10.1 and 0.11.0@next releases, but still want to figure out why this was happening.
I had tried clearing my browser cache, and that didn't help, but something like that could be the cause.
Haven't run into this again - I assume it was related to the browser caching.