- From: Christian Bøhn <chrb@online.no>
- Date: Wed, 23 Jun 1999 18:42:00 +0200
- To: "Nicholas Kushmerick" <nick@ucd.ie>
- Cc: "WWW-TALK" <www-talk@w3.org>
Check out the referer header, it should referer the page which contained it, but of course this is not a safe method. HTH, Christian Bøhn >When an HTML page is rendered, the browser might spawn additional requests >to the server (images, frames, style sheets, applets, ...). Within HTTP, >can the server reliably distinguish such "browser-generated" requests from >actual user requests (ie, when a user clicks on a link)? > >To make this concrete, suppose an HTML page contains: > <A href="q.jpg"><IMG src="q.jpg"></A> >Can the server distinguish between the browser's request for "q.jpg" to >render the HTML, and >the user's request for "q.jgp" by clicking on the hyperlink? > >Assume that the HTML is not under my control -- ie, I can't simply replace >the href above with "q.jpg?user". > >thanks for any suggestions! > >-- Nick > >- + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + >+ Nicholas Kushmerick - >- Department of Computer Science, University College Dublin + >+ nick@ucd.ie www.cs.ucd.ie/staff/nick - >- + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + > >
Received on Wednesday, 23 June 1999 12:47:26 UTC