"Fast (no Javascript)" vs "Full (Javascript)"

I have just signed up for a Cloud Account, and want to know the difference between the above two options are.

I have skimmed through the online Documentation, but as it deals with the Chrome App (which I currently use), I am not sure it is of any help.

Is the "Full..." one more robust and less like tom error out or something?

Anyone help?

Cheers

Padraig

"Fast" driver isn't rendering the page and is only parsing the HTML that is sent by the server. It cannot execute JavaScript in the page and it will miss dynamically generated content. This allows the fast driver to work much faster. The "Full" driver renders the page as it is and basically works almost the same way as the chrome extension does.