In addition to Christian's links I've an article about using JavaScript and an image to send data back and forth here:
http://www.depressedpress.com/DepressedPress/Content/ColdFusion/Essays/GIFAs Pipe/Index.cfm Data goes to the server as URL variables and comes back from the server as cookies. If you're working with a version of CF higher than 4.5 you can replace the CFCONTENT I describe with Christian's version for better performance. The bottom of the article also links to several other potential solutions to this problem. Jim Davis > -----Original Message----- > From: Christian Cantrell [mailto:[EMAIL PROTECTED] > Sent: Monday, June 23, 2003 11:12 AM > To: CF-Talk > Subject: Re: Javascript error catching > > One technique I have occasionally used which is far simpler than a > hidden frame is to use an Image object to send data back to the server. > The following code (untested) sends a name/value pair from JavaScript > to the server: > > var tmp = new Image(); > tmp.src = "captureVars.cfm?foo=bar"; > > You can imagine how wrapping this up in a function that takes all kinds > of arguments would work out very nicely for quickly and easily sending > JavaScript variables to the server. You can even go so far as to > return an image from your CFM page so that the image object is valid. > For information on sending binary data from CF to the browser (in this > case, to JS), see these blog entries: > > http://www.markme.com/cantrell/archives/002658.cfm > http://www.markme.com/cantrell/archives/002736.cfm > > Christian > > On Monday, June 23, 2003, at 10:06 AM, Hugo Ahlenius wrote: > > > I have this idea to improve the quality of a heavy DHTML/Javascript > > application -- Storing some important variables (browser, OS, screen > > size) > > from javascript when window.onerror function is triggered. This could > > be > > stored in a db, or just in a log-file. (One could, onerror, trigger a > > function in a hidden frame that passes these, in a request, to the > > server). > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Get the mailserver that powers this list at http://www.coolfusion.com Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
