My page does not load until I press F12 developer tool. I checked throttle which is No throttling. Not sure where is the problem and why the page does not load until F12.

CodePudding user response：

It could be due to the fact that the DevTools significantly shrinks your viewport. Try seeing if you can reproduce this effect by just shrinking your browser window without opening the devtools. If you can reproduce it that way, it means you have some JS/CSS which is hiding the content of your site on a normally sized window, but showing it on a smaller window.

If this is the case, you should check on your CSS styles first and remove any @media rules. if you're using some kind of library to render a graph (as you mentioned) then you should also check on the configuration of that.