pasteHTML doesn't insert base64 image

[brynjagr]

The pasteHTML function doesn't let me insert a base64 image into the quill editor. The inserted result is an img tag with the src attribute "about:blank".

Steps for Reproduction

1. Create a new Quill instance
2. Run quill.pasteHTML with some base64 image. E.g <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO 9TXL0Y4OHwAAAABJRU5ErkJggg==" />

Expected behavior:
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO 9TXL0Y4OHwAAAABJRU5ErkJggg==" />

Actual behavior:
<img src="about:blank" />

Platforms: Chrome 50.0.2661.102 (64-bit)

Version: 1.0.0-beta.3