When submitting a form with a special character as value on WKWebView, the value sent to the server side is different between iOS14.4 and iOS14.5. This is the same behavior for Safari. Have the specifications changed in iOS 14.5?
HTML like this （special characters are 0xF076 0xF076 0xF076 0xF076 0xF076）
input type="hidden" name="specialchar" id="specialchar" value="(special characters)"
The value received on the server side.
iOS14.5  iOS14.4 f076f076f076f076f076