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$("#uploadForm").on("submit", function(e) { e.preventDefault(); const fd = new FormData(this); $.ajax({ url: "/api/upload", type: "POST", data: fd, processData: false, // required for FormData contentType: false, // required for FormData success: function(res) { $("#preview").attr("src", res.url); }, error: function() { alert("Upload failed"); } }); });
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