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I use Safari on iOS 12/13 device, when I uploading a huge size photo(size > 7MB) with input label in HTML5. // HTML5 input label <input  style="display: none"  id="input_image" type="file" accept="image/*"/> The photo I get in JavaScript, only 1 / 10 the original size(e.g. Origin size is 8.1MB, JavaScript get only 725K) input_image_dom.onchange = function(e) { // calculate size label 			var show_size = document.getElementById("show_size"); 			var file = e.target.files[0]; 			var size = file.size; 			if (size > 1000 * 1000) { 				show_size.textContent = (size/1000/1000).toFixed(2) + 'mb'; 			} else if (size > 1000) { 				show_size.textContent = (size/1000).toFixed(2) + 'kb'; 			} else { 				show_size.textContent = size + 'byte'; 			} 			 			uploadImageFile(file) 		} We do a lot of test with on various devices，all have same issue.