I need frequent refreshing pages (1S once) in my application, using obvious efficiency is too low, producing obvious flicker.
So I checked it online and found that XMLHTTP can meet the requirements. After a little more study, I wrote a code, I finally read the remote file, but every time it was the same.
After a few days, I found that the head control-type to set the head of Request was NO-Cache, finally successfully.
