Dashboard and Dollar sign

[de-raphi]

If a HystrixCommand-name (also GroupKey) contains a dollar sign ($) the Dashboard does not display the diagram correctly.

e.g.:
data: {"type":"HystrixCommand","name":"$DomInfo.isFreeFast" ..... }

[benjchristensen]

Our 'invalid character' cleanup apparently isn't good enough:

https://github.com/Netflix/Hystrix/blob/master/hystrix-dashboard/src/main/webapp/components/hystrixCommand/hystrixCommand.js#L91
https://github.com/Netflix/Hystrix/blob/master/hystrix-dashboard/src/main/webapp/components/hystrixThreadPool/hystrixThreadPool.js#L86

I have avoided making the regex only accept characters/numbers because I want the full UTF8 character-set to be supported for international usage. That's why I've only stripped bad characters as I have found them.

If you have the time to take a look at how to improve those 2 lines of code above to fix this (and any other invalid characters you know of) I'd appreciate the help.

[ogafosir]

Looks like spaces isn't a good idea either (atleast in ThreadPoolName)