preamble.js: Don't use fetch() in Node.js environment (#16917)

Node 18 added instantiateStreaming() support, which our JS notices
and tries to use together with fetch(), but fetch() does not work
properly yet in Node. To avoid breakage, avoid that code path in node.

Fixes #16913

Author: simnalamburt

src/preamble.js

@@ -1184,6 +1184,15 @@ function createWasm() {
 #if ENVIRONMENT_MAY_BE_WEBVIEW
         // Don't use streaming for file:// delivered objects in a webview, fetch them synchronously.
         !isFileURI(wasmBinaryFile) &&
+#endif
+#if ENVIRONMENT_MAY_BE_NODE
+        // Avoid instantiateStreaming() on Node.js environment for now, as while
+        // Node.js v18.1.0 implements it, it does not have a full fetch()
+        // implementation yet.
+        //
+        // Reference:
+        //   https://github.com/emscripten-core/emscripten/pull/16917
+        !ENVIRONMENT_IS_NODE &&
 #endif
         typeof fetch == 'function') {
       return fetch(wasmBinaryFile, {{{ makeModuleReceiveExpr('fetchSettings', "{ credentials: 'same-origin' }") }}}).then(function(response) {