Window Size for zstd-d

[felixhandte]

The Compression Dictionary Transport spec introduces a new encoding scheme zstd-d. We may want to clarify the window limits for that scheme as well (either in this draft or in the CDT draft).

Probably the right answer is something like 8 MB or 2 * the dictionary size if one is in use, to allow delta-ing of larger resources.

[nidhijaju]

That's a good point!
I think in Chrome we ended up using max(dictionary size, 8 MB) if a dictionary is in use, or 8 MB otherwise.

I think that should be added to the Compression Dictionary Transport spec, since it's not published yet and that's where the Content-Encoding token for zstd-d is being added. I just filed an issue there.