test Broadcast Channel
it comes from
here
- This page will notify other pages when it change the text
- it is using BroadCastChannel which is not supported by IE
- it will not notify the page itself,
but you can create two channels on the same name like
this
- the event is only triggered on the same server
- it can be run at local, which is different from localStorage event
- please open this page in two tabs for testing
my text