Go to index.html in intel xdk then look for this script lines
// Issue a warning if trying to preview an exported project on disk.
// Check for running exported on file protocol
if (window.location.protocol.substr(0, 4) === "file")
alert("Exported games won't work until you upload them. (When running on the file:/// protocol, browsers block many features from working for security reasons.)");
Then delete it.
i hope i helped you