How to Determine Remote Filesizes without Downloading Files

[@sherifsalah5563]

That was one of the best informative videos i’ve seen on youtube for a while now, everything else is primitive skills, redundant information or a trend of discussions about “social life of programmers” .. i’m glad i found your channel, keep up the good work .. thank you!

[@heshanwijerathna]

This channel is pure gold.

[@rafaelfgyn28]

Man... This video is TRULY amazing. Exactly what I needed. Good job once again, Steve. Keep It up!!!

[@koen_reus]

Great & informative video as always Steve. I found in practice that the content-length header can't always be relied upon though. I recently built something where users could enter an image URL and it would determine the file size by looking at the content-length header. Sometimes aggressive caching systems and things like CloudFlare would mess with the header (or even omit it).

[@SteveGriffith-Prof3ssorSt3v3]

Yeah. There is always some developer, some proxy server, some framework, or some browser that gets in the way of what would be a simple solution. Like most things you can trust your own server and environment to do what you expect. Beyond that copious amounts of error handling.

[@joaovaz3473]

Wow, that's really useful and informative! Thank you for your great videos!

[@NpcX-pn5xk]

Is it always the content length header available???, I heard it somewhere it didn't available when CORS Enabled

[@SteveGriffith-Prof3ssorSt3v3]

It doesn't matter about CORS, but it is not always available. Depends on the server. Most of the time it is there.

[@saadowain3511]

Hi Steve can you please explain the server sent events with code example

[@SteveGriffith-Prof3ssorSt3v3]

What server sent events?

[@saadowain3511]

@@SteveGriffith-Prof3ssorSt3v3 an alternative to ajax and web socket. Like push technology. One way communication

[@SteveGriffith-Prof3ssorSt3v3]

@@saadowain3511 I will eventually be making videos about push notifications.

[@kolyazoloto]

Thank you.

[@gangedup1]

Fun :)

[@khalilalmazaideh6934]

Sound like Agent 47??

[@SteveGriffith-Prof3ssorSt3v3]

I've heard that a couple times