blob url shouldn't be flagged as insecure

[shahraship]

when using Blob and window object url to load it, it flags it as an insecure request
for example:
var blob = new Blob(['SOME JS WEB WORKER CONTENT']); var worker = new Worker(window.URL.createObjectURL(blob)); worker.postMessage({});
This loads a blob url in the browser network requests and is flagged as insecure.

[patrickhulce]

good catch thanks for the report @shahraship!

[paulirish]

@shahraship nice catch.