Update share_btn.py

share_btn.py

@@ -10,15 +10,11 @@ loading_icon_html = """<svg id="share-btn-loading-icon" style="display:none;" cl
 
 share_js = """async () => {
     async function uploadFile(file){
-        const validTypes = ["image/jpeg", "image/png"];
-        if (!validTypes.includes(file.type)) {
-            file.type = "image/jpeg";
-        }
         const UPLOAD_URL = 'https://huggingface.co/uploads';
         const response = await fetch(UPLOAD_URL, {
             method: 'POST',
             headers: {
-                'Content-Type': file.type,
+                'Content-Type': "image/jpeg",
                 'X-Requested-With': 'XMLHttpRequest',
             },
             body: file, /// <- File inherits from Blob