How to include html page in unit test?

Question

Angular

On the client, the angular.js framework.
For tests I use karma, phantom.js and mocha
On one of the pages a video is played using videojs, which is initialized by id.
When I run the test, I get the error 'TypeError: The element or ID supplied is not valid. (videojs)'
As I understand it, karma-ng-html2js-preprocessor can help to fix this error, but I couldn't configure this plugin.
Please tell me how to make videojs get id from markup.