Weird thing involving dragging the page

[merukit]

Sometimes when I am reading a chapter I tend to do a little drag while clicking to the next page. This is normally fine, but occasionally this weird thing happens where my small drag actually drags something out of the page. Now, this thing that I have dragged out of the page, like dragging an embedded image on a website, sometimes sends me to a page with just that image on it. I believe that this is the browser's view image function. Except on Mangadex, I do not drag the image up to the url bar and it still boots me to the image I dragged out of the page. Additionally, the image that gets dragged out of the reader page is not the page I am on, but every time a page from some chapter I had read many minutes prior.