Is it possible to send data from the server to the client to a specific url?

Question

JavaScript

Let's say we're uploading an image to a page located at a specific url.
We send data to the server using $.ajax POST, the image changes to the uploaded one.
Is it possible to send new image data to everyone on this page without reloading it?
And without using sockets.

Answer 1

well, if the religion does not allow web sockets, then only long polling (well, or torture the server with a timer, but this is already hell)

Answer 2

websocket was created exactly for this,
and before that, delayed longpool http requests with a pause were used (the server keeps the connection open with the client, which makes a request like 'is there anything for me', until you need to send him a message, and so on in a loop )