It's possible to prevent the server caching your request/response, and you always get the latest change from the server. You can enable it by navigating to
Tool -> No Caching: Enable/Disable
No Caching tool will manipluates all requests by adding or removing headers, which are described in the following table.
If-Modified-Since and If-None-Match
Pragma: no-cache and Cache-control: no-cache
Expires, Last-Modified and ETag
Expires: 0 and Cache-Control: no-cache