Re: Lazy Blob

On 8/1/12 11:44 AM, Glenn Maynard wrote:
> Ideally, a new responseType could be added to XHR which operates like
> "blob", except instead of reading the whole resource, it just performs a
> HEAD to retrieve the response length and immediately returns the Blob,
> which can be read to perform further Content-Range reads.

Unless the server is one of the common ones with broken HEAD handling. 
Or unless the resource is served with Content-Encoding:gzip, in which 
case your Content-Range is all sorta broken.  :(

> The trouble is chunked responses, where the length of the resource isn't
> known in advance, since Blobs have a static length and aren't designed
> for streaming.

That's another trouble, yes.

-Boris