under the iphone x Wechat page, safari will not, and there is no similar problem with other iphone phones tested. When the keyboard is pulled up in the input input box, the keyboard disappears, but the area of the original keyboard still exists, and a blank of the same size appears at the bottom of the page. At this time, the refresh page will not return to the normal height of, alert ($(window). Height ()) and only the height of the upper area.
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