Problems creating babel-polyfill.min.js

[Andreas Tille <andreas@an3as.eu>]

Hi,

I'd like to upgrade the package r-cran-shiny.  The new upstream version
contains babel-polyfill.min.js.  I think I found the source which can be
obtained via

	npm install --save-dev babel-polyfill
	mv node_modules/babel-polyfill/dist/polyfill.js babel-polyfill.js

While this process creates also a minimized js I have no idea how this
can be approached.  Normally I'm using yui-compressor for the conversion
but in this case it fails:

$ yui-compressor babel-polyfill.js
Exception in thread "main" java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at com.yahoo.platform.yui.compressor.Bootstrap.main(Bootstrap.java:21)
Caused by: java.util.MissingResourceException: Can't find bundle for base name org.mozilla.javascript.resources.Messages, locale de_DE
        at java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:1564)
        at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1387)
        at java.util.ResourceBundle.getBundle(ResourceBundle.java:845)
        at org.mozilla.javascript.ScriptRuntime$DefaultMessageProvider.getMessage(ScriptRuntime.java:3608)
...


When doing a websearch this might mean that the JS contains errors - but
it seems there is a different converter which has no problems.  Before
I start debugging what exactly happens in "npm install" I wonder whether
comebody could enlighten me what's the best way to get the minimized JS.

Kind regards

       Andreas.

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