I've run into a tricky problem and have been working on it for a long time. When browsing the Flarum site using Safari, when clicking into a discussion from the front page, and then returning to the front page, all the images within the page (usually all the avatar images) are forced to refresh, flickering a bit (as can be clearly seen by recording the screen on the iPhone and then playing it back in slow motion).
My site has a lot of images on the front page, and this image refresh causes severe page drift as well as flickering on the iPhone, so any ideas on how to fix this problem on Safari would be greatly appreciated!