I recently reviewed the code for a webapp built with angular and found that it was written with the ng-app="myModule" directive placed on the <body> tag. When learning angular, I've only ever seen it used on the <html> tag, as recommended by the angular docs here, here, and in their tutorial.
I've explored this a bit on my own and found SO questions, notably this one and similarly this one, that discuss loading multiple modules for a page. However, this technique different from my case, as it involves placing ng-app on elements within the body and using manual bootstrapping to run two angular apps at the same time.
As far as I can tell, there is no difference at runtime between an app with ng-app on <html> or <body>. As I understand it, ng-app designates the root of an angular application, so placement of it on the <body> would cut <head> out of angular's scope, but I can't think of any major way this would affect things. So my question is: What are the technical difference between placing ng-app on one of these tags instead of the other?
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