misc/wasm: add mention of polyfill for Edge support

neelance · bradfitz · commit e5489cfc12a9 · 2018-10-02T17:25:11.000Z
Edge supports WebAssembly but not TextEncoder or TextDecoder. This change adds a comment pointing to a polyfill that could be used. The polyfill is not added by default, because we want to let the user decide if/how to include the polyfill. Fixes #27295 Change-Id: I375f58f2168665f549997b368428c398dfbbca1c Reviewed-on: https://go-review.googlesource.com/139037 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/misc/wasm/wasm_exec.html b/misc/wasm/wasm_exec.html
@@ -12,6 +12,11 @@
 </head>
 
 <body>
+	<!--
+	Add the following polyfill for Microsoft Edge 17/18 support:
+	<script src="https://cdn.jsdelivr.net/npm/text-encoding@0.7.0/lib/encoding.min.js"></script>
+	(see https://caniuse.com/#feat=textencoder)
+	-->
 	<script src="wasm_exec.js"></script>
 	<script>
 		if (!WebAssembly.instantiateStreaming) { // polyfill
