Open links made by createObjectURL in IE11

Why can’t you open the link in the following demo:
http://html5-demos.appspot.com/static/a.download.html

You cannot even right click and open it in a new tab/window. Is there any setting in the browser I need to customize?

errrm. You missed

Browser support: right now, only Chrome dev channel (14.0.835.15+) supports this attribute.

No I didn’t: I know the download attribute isn’t supported in IE and Safari. But it’s a link and even if you can’t click and download it, you should be able to navigate to the URL mentioned in the href attribute in the same tab or a new one. It works as expected in Safari, but not in IE11.

OK, I see what you mean now.

view-source shows

<a class="dragout" draggable="true"
 data-downloadurl="text/plain:MyFile.txt:blob:999891b5-4f13-4b04-8d1c-9131fe0ceb3b" 
href="blob:999891b5-4f13-4b04-8d1c-9131fe0ceb3b"
 download="MyFile.txt">Download ready</a>

blob:999891b5-4f13-4b04-8d1c-9131fe0ceb3b
Is that a valid URL?

EDIT
Hmm. supposedly IE 10 and 11 support Web Workers

Yes: you can use blob URLs in any context that regular URLs can be used in, for example img.src, etc.
Sources:

  1. https://developer.mozilla.org/en-US/docs/Web/API/Blob
  2. https://developer.mozilla.org/en-US/docs/Using_files_from_web_applications#Example.3A_Using_object_URLs_to_display_PDF

If it wasn’t a valid URL you woudn’t be able to download it or navigate to it in other browsers. Even in IE11 you can download it: right-click >> Save target as….