Blobstore Downloads using IE seeing errors connecting to appspot

[Will Reiher]

I've heard some support issues come up when some of our customers have tried to download a file from the blobstore using Internet Explorer and get an error. The download dialog comes up and everything seems to be acting property but when the download begins they see some type of cannot connect to *appspot.com error. Has anyone else seen this and more importantly is there a work around?

We all work in firefox or chrome browsers and have never seen this issue. 

[Joseph Letness]

Hi Will, your probably sending your blobs without a properly formatted
header response. I had this same problem when I was testing content
types and I inadvertently left the content_type header undeclared.
Every other browser worked fine but IE was broken (apparently IE is
the only browser that cares to know before hand what the content type
is ;). After I fixed that, all was good with IE again.

Hope this helps and good luck!

--Joe