playground: Send data unmodified via XHR binary mode.

dmitshur · dmitshur · commit f033e2eeb14e · 2015-01-27T18:41:08.000-08:00
We don't want the raw bytes to change from client to server, so send using binary mode. This is done by using []byte parameter, which gets externalized into Uint8Array aka ArrayBufferView, which is one of the parameters that XHR send accepts for sending binary data. See dominikh/go-js-xhr#4 for details.
diff --git a/playground/playground.go b/playground/playground.go
@@ -221,8 +221,7 @@ func main() {
 			req := xhr.NewRequest("POST", "http://"+snippetStoreHost+"/share")
 			req.ResponseType = xhr.ArrayBuffer
 			go func() {
-				// TODO: Send as binary?
-				err := req.Send(scope.Get("code").String())
+				err := req.Send([]byte(scope.Get("code").String())) // Send as binary.
 				if err != nil || req.Status != 200 {
 					scope.Apply(func() {
 						scope.Set("output", []Line{Line{"type": "err", "content": `failed to share snippet`}})
diff --git a/playground/playground.js b/playground/playground.js
@@ -65171,7 +65171,7 @@ $packages["github.com/gopherjs/gopherjs.github.io/playground"] = (function() {
 				$go((function($b) {
 					var $args = arguments, $r, $s = 0, $this = this, _r, data, err;
 					/* */ if($b !== $BLOCKING) { $nonblockingCall(); }; var $f = function() { s: while (true) { switch ($s) { case 0:
-					_r = req$1.Send(new $String($internalize(scope.Object.code, $String)), $BLOCKING); /* */ $s = 1; case 1: if (_r && _r.$blocking) { _r = _r(); }
+					_r = req$1.Send(new sliceType$2($stringToBytes($internalize(scope.Object.code, $String))), $BLOCKING); /* */ $s = 1; case 1: if (_r && _r.$blocking) { _r = _r(); }
 					err = _r;
 					if (!($interfaceIsEqual(err, $ifaceNil)) || !((($parseInt(req$1.Object.status) >> 0) === 200))) {
 						scope.Apply((function() {
