Angular tag inside html element

I have the following angular code:

<div ng-repeat="creation in creations">
   <input type="checkbox" data-foobar="[[creation.foobar]]" [[creation.params]]>
   [[creation.params]]
</div>

That's it, the problem is that creation.params contains "disabled checked" or "checked" values, and it should create disabled checkboxes, but it does not. I don't know why, all checkboxes are unchecked.

Even though when I later display creation.params variable, it shows correct value:

disabled checked
disabled checked
disabled checked
checked
disabled checked

for 5 checkboxes - but all are unchecked.

What's wrong?

By the way, I have used:

$interpolateProvider.startSymbol('[[').endSymbol(']]');