examples/helloworld fails to work in Chrome

[jmgurney]

Attempted to run the helloworld example, and it does not work in Chrome, but works fine in Firefox.

Chrome version 63.0.3239.132 (Official Build) (64-bit) on Mac OS X.

Console shows:
Hello.nocache.html?1518396845803:100 Uncaught DOMException: Blocked a frame with origin "null" from accessing a cross-origin frame.
at onload (file:///Users/jmg/git/pyjstest/helloworld/output/Hello.nocache.html?1518396845803:100:117)
onload @ Hello.nocache.html?1518396845803:100

This should work as: https://github.com/pyjs/pyjs/wiki/GettingStarted#running-examples
states:
For test locally, just look /examples/helloworld/output/Hello.html in the browser.

Maybe update the page to denote that this will not work for Chrome, and/or include content in the static html to note the user error.

[jmgurney]

Another option is to suggest using the built in python web server, so:

python -m SimpleHTTPServer

Then navigate to http://127.1:8000/Hello.html