Chrome not caching preflight
You have Pragma: no-cache
& Cache-Control: no-cache
headers set in the request.
Try removing them.
Api requests by default do not set these headers, and I doubt chrome does either.
You should check your code and find out where they are set from.
Now, given that its working fine on other browsers, you'd better check if you have set no-cache
option on Dev Tools
.