[keredson]

SSE supports gzip compression, and a gzip-ed base64 is almost as small as the original jpg:

$ ls -l PXL_20210926_231226615.*

-rw-rw-r-- 1 derek derek 8322217 Feb 12 09:20 PXL_20210926_231226615.base64

-rw-rw-r-- 1 derek derek 6296892 Feb 12 09:21 PXL_20210926_231226615.base64.gz

-rw-rw-r-- 1 derek derek 6160600 Oct 3 15:31 PXL_20210926_231226615.jpg

[samwillis]

Quite true, however from memory Django doesn’t (or didn’t) support gzip on streaming responses and as we host on Heroku we didn’t want to introduce another http server such as Nginx into the Heroku Dyno.

As an aside, Django with Gevent/Gunicorn does SSE well from our experience.