From 4c29f0fdb68d8a3980a64cf4d7790efd779f7e71 Mon Sep 17 00:00:00 2001
From: admin <rh.plus001@gmail.com>
Date: Mon, 11 Feb 2019 18:19:33 +0900
Subject: [PATCH] wasm: support wasm example on Safari

---
 src/examples/wasm/wasm.js | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/src/examples/wasm/wasm.js b/src/examples/wasm/wasm.js
index 2d2f091b..030d0bbe 100644
--- a/src/examples/wasm/wasm.js
+++ b/src/examples/wasm/wasm.js
@@ -13,11 +13,23 @@ function init() {
   document.querySelector('#b').oninput = updateResult;
 
   const go = new Go();
-  WebAssembly.instantiateStreaming(fetch(WASM_URL), go.importObject).then(function(obj) {
-    wasm = obj.instance;
-    go.run(wasm);
-    updateResult();
-  })
+  if ('instantiateStreaming' in WebAssembly) {
+    WebAssembly.instantiateStreaming(fetch(WASM_URL), go.importObject).then(function(obj) {
+      wasm = obj.instance;
+      go.run(wasm);
+      updateResult();
+    })
+  } else {
+    fetch(WASM_URL).then(resp =>
+      resp.arrayBuffer()
+    ).then(bytes =>
+      WebAssembly.instantiate(bytes, go.importObject).then(function(obj) {
+        wasm = obj.instance;
+        go.run(wasm);
+        updateResult();
+      })
+    )
+  }
 }
 
 init();