[fix] test for image files (#4602)

frappe/public/js/frappe/misc/utils.js

@@ -537,6 +537,8 @@ frappe.utils = {
 	},
 
 	is_image_file: function(filename) {
+		// url can have query params
+		filename = filename.split('?')[0];
 		return (/\.(gif|jpg|jpeg|tiff|png|svg)$/i).test(filename);
 	},
 
@@ -635,4 +637,4 @@ if (!Array.prototype.uniqBy) {
 			})
 		}
 	})
-}
+}