DavesMan

I've just inspected the latest version of Guava and there is still no equivivalent of my ImmediateEventBus so immediate Dispatcher is still unused in master version of Guava. I wonder...

> Can't this be achieved with just > `this.policy = this.policy.allowUrlProtocols("tel","data");` > In the [readme ](https://github.com/OWASP/java-html-sanitizer)there is the following: No. I have allowUrlProtocols("mailto", "javascript", "tel", "https") and this allows https...

Seems it could save a lot of "custom" work. No I also do some substring and regex checks of URLs using apply method of ElementPolicy.

It would be useful to allow at least the conditional comments such as