Created by: goldhand
Updating sw-precache-webpack-plugin to v0.11.3 will fix the following related issues:
Windows path: https://github.com/facebookincubator/create-react-app/issues/2235 Duplicate builds: https://github.com/facebookincubator/create-react-app/pull/1728#issuecomment-301998584
I have tested by running /bin/react-scripts.js build and asserting that the build log message is not emitted twice. The problem was discovered in this https://github.com/goldhand/sw-precache-webpack-plugin/pull/78 we were calling the webpack done callback twice.
I do not have a windows machine to test the windows fix but the fix is exactly the same as in this configuration. The fix is here and has been published for a couple weeks now with no issue.
In addition to these fixes, updating to 0.11.3 will allow chunk's with hashes to be "precached" and used in importScripts.