Blob content type not preserved when retrieving blobs from IndexedDB Noticed this when storing an image/svg+xml blob, then trying to assign the blob to an <img> element and having that fail. Since we didn't preserve content type coming out, we created a BitmapImage backing store instead of an SVGImage.
<rdar://problem/27057357>
Created attachment 282564 [details] Patch
WHOOPS - Forgot to include the test expectations!
https://trac.webkit.org/changeset/202747