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Is there some mechanism to provide server push technology using plain HTML, without using javascript (or any other script languages on the client side).

Under "server push" I mean process where the server to update some part of the page content when needed.

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    Server push what? An update to a part of a page? A whole page? New content at the end of the page? Commented Mar 6, 2014 at 7:46
  • @jfriend00: Updating some data on the page. Updating the whole page could be a solution too, but I am afraid, most web browsers will make the page to flash, thus generating heavy flickering image. Commented Mar 6, 2014 at 11:53
  • Server push as in an AJAX call? An alternative to that without the use of JS? Commented Mar 6, 2014 at 11:59
  • @Galadre: Well, for me, using AJAX is not mandatory. I have implementations of server-push without using any XML, only plain JS and some server-side programming. Notice, I am not web developer and may miss some knowledge. Commented Mar 6, 2014 at 12:23

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I don't know of any way that true server push can be used without any javascript in the page.

Without javascript, the only thing I'm aware of is a meta refresh tag that would tell the browser to refresh this page after some particular time interval. This tag applies to a whole page only. If you wanted only part of a page to be updated, you could use an iframe and have only the iframe be updated. Of course, this is not server push, but a client-driven auto-update and it will be run on a predetermined interval, not just when there is actually new data. For something smarter than this, you will need javascript.

The most efficient server-push would be to use javascript from the page to connect to your server over a websocket and then have the server just send data to the page via the websocket whenever it wants (true server-push). The client's javascript can then respond to the receipt of that websocket data by updating a particular piece of the page.

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