How long do browsers cache HTTP 301s?

Question

I am debugging a problem with a HTTP 301 Permanent Redirect. After a quick test, it seems that Safari clears its cache of 301s when it is restarted, but Firefox does not.

Answer 1

I have simple solution that worked on all major browser (latest version), includes IE, Chrome and FF

1. Ctrl + Shift + Del
2. -
   1. Chrome: Select "Browsing History" and "Cache..."
   2. IE: I leave default option "Temporary Internet files and website files", "Cookies and website data", "History"
   3. FF: "Browsing and Download history", "Cache"
3. Click "Delete"
4. Close and reopen your browser. It should work