From 423bebbd14d324dc782cccd51b142702b654b7c3 Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Mon, 29 Jul 2019 14:49:15 -0700
Subject: [PATCH] Improve leniency of `--no-modules` output

Instead of assuming names like `URL` and `Request` are defined, instead
check to see if they exist first and otherwise skip the checks that
reference them.
---
 crates/cli-support/src/js/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/cli-support/src/js/mod.rs b/crates/cli-support/src/js/mod.rs
index 6fcfcf47..f4c0dfd4 100644
--- a/crates/cli-support/src/js/mod.rs
+++ b/crates/cli-support/src/js/mod.rs
@@ -502,7 +502,7 @@ impl<'a> Context<'a> {
                     let result;
                     const imports = {{}};
                     {imports_init}
-                    if (module instanceof URL || typeof module === 'string' || module instanceof Request) {{
+                    if ((typeof URL === 'function' && module instanceof URL) || typeof module === 'string' || (typeof Request === 'function' && module instanceof Request)) {{
                         {init_memory2}
                         const response = fetch(module);
                         if (typeof WebAssembly.instantiateStreaming === 'function') {{