Entire site reloading with flashing effect between pages in Chrome and Safari

I’ve built a custom responsive theme based on Skeleton.

Everything is basically working, and in Firefox it looks good, but in Chrome and Safari I’m getting a flashing or blinking effect as the entire site– all the divs, menus, etc (everything except the background)– reloads when you click from page to page. Any reason this would be happening?

Here’s the site: https://www.centerforhomemovies.org/

I disabled a few outdated plugins, but this did not help.

Hm…