tab type is not set correctly if used as in the documentation

[bsr203]

Hello,

I have issue rendering tab directive correctly in my local setup. When I use the same versions in plnkr, it works fine. I narrowed down the issue to below line.
https://github.com/angular-ui/bootstrap/blob/master/src/tabs/tabs.js#L83
scope.type = angular.isDefined(attrs.type) ? scope.$parent.$eval(attrs.type) : 'tabs';

I am not sure where is it changed, but $eval returns undefined if I use it like

tabset(type="pills")

but it works fine if

tabset(type="'pills'")

it makes sense as scope.$parent.$eval(attrs.type) undefined as there is no variable pills (returned by attrs.type) in the scope. But I am not sure how it works on plnkr (example in the doc) though .

[pkozlowski-opensource]

@bsr203 everything works as expected. The type attribute is evaluated so it needs to be an AngularJS expression. If you want to use a string constant you need to enclose it within quotes. This is how it worked from the beginning and in the docs a variable is used.

Having said the above we are considering migration of this attribute to its interpolated form. See #1459