For what it's worth, I'm using IE 10/11 (sometimes in 'edge' mode, sometimes in IE7 emulator mode), and instead of handling cookies directly I'm using JQuery Cookies. Everything appears to work correctly in all other tested browsers.
I have a really weird problem.
My webapp needs to remember if a user has visited certain pages, and I'm using cookies to achieve this. It works, but there is one odd error. If I go in and reset all cookies (using the safety -> delete browsing history control), only most of them reset. A few don't, and which ones don't is semi-random. Certain ones never reset, others usually reset, others randomly choose not to reset.
I went in and interrogated my code, assuming it was a program error, but I tracked the code down directly to the cookies -- the cookie retrieval code is returning 'true' instead of 'undefined' for a lot of those cookies.
I set the cookies using the following code:
var id=$(this).attr('id');
$.cookie(id,true,{expires:3650});
The code to check the value of the cookie is:
var id=elem.attr('id');
var cookie=$.cookie(id);
I've stepped through in the debuggers, and id is being loaded with the correct values. Cookie is (correctly) evalutated as 'undefined' in most instances, but in a few (one reliable, some random) is evaluating to true even after the cookies are reset.
Anyone have any ideas?