It seems that the ajax 'cache' parameter is useless

[robustsolution]

except for internet explorer where is has an important effect but is still browser dependent not client side application dependent.

so why don't we omit all the 's.cache' tests from the jQuery library?

so the consecutive lines

if ( s.dataType == "script" && s.cache == null )

s.cache = false;

if ( s.cache === false && type == "GET" ) {

should be replaced by only

if (type == "GET" ) {

[flesler]

It actually does make a difference whether you set it to true or false. Setting false avoids any cache, while having it as true will give you cache on most cases.