Our web application used Java based technology for backend stuff. Everything include static resources (img, js, css, font, ect.) will be bundled inside a single war file. This webapp is kind of slow even with localhost, and even more slow with real intenet connection. After inspecting with Chrome Dev Tool, I found that all resource request have the same cache control header
Cache-Control:no-cache, no-store, max-age=0, must-revalidate
Content-Type:application/javascript
Expires:0