AngularJS + Karma + Ng-html2js => Failed to instantiate module …html

Question

I can\'t make Karma working for directives that have external templates.

Here is my karma configuration file :

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Answer 1

The problem may be that relative paths specified in file section get expanded to full ones.

Something like directives/loading/templates/loading.html => /home/joe/project/angular-app/directives/loading/templates/loading.html

... and then, templates get registered with theirs full paths.

The solution is to configure the ng-html2js preprocessor to remove the absolute part of the template paths. For instance, in the karma.conf.js file add the stripPrefix directive like this :

ngHtml2JsPreprocessor: {
    // strip this from the file path
    stripPrefix: '.*/project/angular-app/'
    prependPrefix: '/app/'
}

Note that stripPrefix is a regexp.