AJAX query weird delay between DNS lookup and initial connection on Chrome but not FF, what is it?

AJAX query weird delay between DNS lookup and initial connection on Chrome but not FF, what is it?

ajax performance google-chrome firefox flask

google-chrome

This site can’t be reached [flask, python]

python google-chrome flask

google-chrome

How to prevent cached response (flask server, using chrome)

python google-chrome caching flask

google-chrome

Flask not processing other HTTP requests after Chrome browser accesses the web-site

python google-chrome http flask

google-chrome

AngularJS $http.get() takes up to 10-20 seconds in Chrome, works fine in Firefox

javascript google-chrome angularjs flask cors

google-chrome

Flask web application loses session variables upon redirect in Chrome only

python google-chrome session cookies flask

google-chrome