Improve error handling of Webpack manifest loading
If an HTTP error occurs loading the manifest, we saw an obscure JSON parse error. Now we look for the 200 response code and raise an error if we don't get back a valid response.
Edited by Stan Hu
If an HTTP error occurs loading the manifest, we saw an obscure JSON parse error. Now we look for the 200 response code and raise an error if we don't get back a valid response.