special handling for GIF

Author: b1conrad

packages/pico-engine/src/setupServer.js

@@ -102,6 +102,10 @@ module.exports = function(pe){
             if(err) return errResp(res, err);
             if(_.isFunction(data)){
                 data(res);
+            }else if(respType && funcPart[1] === "gif"){
+                res.header("Content-Type", respType);
+                res.write(Buffer.from(Uint8Array.from(data)),"binary");
+                res.end();
             }else if(respType && funcPart[1] !== "json"){
                 res.header("Content-Type", respType);
                 res.end(data);