Stop page from appearing in browser history

Question

I have a simple flow

A.html -> B.html -> C.html

Now, B either 302's to C, or shows a progressbar, and then after some ajax call is done goes to C. When the user is on C, and they hit "Back" I want them to end up on A instead of B.

If the page 302ed, then the back behavior is what I want, but otherwise they get that intermediary page. Any way to solve this easily?

Answer 1

Use ajax in A to load B into A.

Answer 2

Nope. That's a function of the browser itself, and not something generally exposed to the page's desires. You'd be better off having page A do an AJAX call instead of loading page B in the main window at all.

Answer 3

Presumably when the Ajax is done you are using:

location.href = "http://example.com/c";

Change that to:

location.replace("http://example.com/c");