cowboy
commented
14 years ago In IE6/7, when you want to enable the back button for hash history, you use a hidden Iframe. When the hash changes, the Iframe location is changed, and every time the Iframe location changes, a new history entry is added. Unfortunately, any other Iframe on the page will affect the history.. and, you guessed it, the JSONP jQuery plugin also uses a hidden Iframe.
I'm not aware of any workaround for this particular conflict, but seeing as you need a hidden Iframe to enable hash history in IE6/7, can you look into another JSONP solution?
richow
Overview
In Internet Explorer 6, hashchange forward navigation doesn’t work when using the JQuery JSONP plug-in, http://code.google.com/p/jquery-jsonp/ .
Reproduction steps
1) Navigate to http://webmeter.com.au/problem/ 2) Ensure “Do AJAX” is checked 3) Click “1”. a. The browser will send an AJAX query. Once complete the status message should say “Success for #1”. 4) Click “2”. a. The browser will send an AJAX query. Once complete the status message should say “Success for #2”. 5) Click the browser BACK button a. The browser will send an AJAX query. Once complete the status message should say “Success for #1”. b. In IE6, the forward button will be disabled. This is wrong, it should be enabled and allow forward navigation to “2”.
Do the same test with FF 3.5+ or Safari. At step 5.b the forward button works correctly.
Do the same test again with IE6, but this time at step 2 ensure “Do AJAX” is not checked. At step 5.b the forward button works correctly.
Notes
I realize the reproduction steps are not using cross domain JSON and so don’t need the plug-in. However, I found this problem when actually needing cross domain JSON.