We usually have multiple ng-includes in every main html/jsp pages, I was wondering if there a way to group all ng-includes into one http request?
A very similar question was answered here: http://stackoverflow.com/a/12346901/1418796
In short, yes, it is very easy to pre-load partials with AngularJS, wither by using the script directive (and thus pre-load partials inside the initial HTML download) or putting partials into the $templateCache (in this case partials are downloaded with JavaScript).
More details and code examples in the referenced question.