To ignore resources that shouldn't be traced as part of the build. Use with the SystemJS Builder. (https://github.com/systemjs/builder#ignore-resources)
When scripts are loaded from a different domain (e.g. CDN) the global error handler (window.onerror) has very limited information about errors to prevent unintended leaking. In order to mitigate this, the
A truthy value enables sending credentials to the server on every request. Additionally, a string value adds an 'Authorization' header with that value to all requests.