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Re: lynx-dev Loading images from "post" pages

From: David Woolley
Subject: Re: lynx-dev Loading images from "post" pages
Date: Thu, 27 Jun 2002 07:23:09 +0100 (BST)

> Thanks for the answer, but cannot agree that the situation is
> "unlikely on the real internet".  A simple example: a page containing

It is very unusual on the internet to have the result of a POST
be Content-Type: image/gif.  What normally happens is that the response
is text/html, which then contains an img element that causes the browser
to GET the image/gif.

> quotes and an image of the real-time dynamics of a stock. The data
> change continuously, if to reload image, it will be async with text
> data.
> And also take into account that "post" is becoming more and more popular 
> in the net, as well as that sort real-time pages.

POST is irrelevant, because the images are accessed with GET, not POST.

If the images are tied to the page, either the URL for the image should
contain some function of the time, so that the correct version can
be regenerated, or the site should generate a temporary image file at
the same time as it generates the HTML, and include the URL to that,
temporary, file in the HTML.  Temporary files are a common tactic for
security by obscurity on software download and map sites, to stop people
redistributing the link to the underlying resource and bypassing the
HTML page and its advertising payload.

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