When WebKit is build using NETWORK_SESSION, it is not possible to download BLOB URLs.
Steps to reproduce:
1. Open the attached test case "blob_download_test.html".
2. Right-click on the "WebKit Icon" link and download to a file.
3. Save the file somewhere.
4. You get a copy of the old Gold WebKit icon in you download folder.
5. Right-click on the "Silly Blob Example" link and download to a file.
6. Save the file somewhere.
7. Nothing happens!
If you attach to the Network Process, you will see that the download fails:
The error object has a 0 error code, a nullptr PlatformError, and a blank failing URL.
Created attachment 275673 [details]
Simple blob test case
Does this work without using NETWORK_SESSION?
*** This bug has been marked as a duplicate of bug 156099 ***