From ba7d210dc2d5a91ac1dd4ded294d3d1e4a7b5314 Mon Sep 17 00:00:00 2001
From: "joey.ren.huang" <joey.ren.huang@gmail.com>
Date: Thu, 28 Dec 2023 12:00:26 +0800
Subject: [PATCH] fetch wasm file should append baseUrl base on currenScript
 running env

---
 src/wasm-helper.ts | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/wasm-helper.ts b/src/wasm-helper.ts
index d94db79..07a7685 100644
--- a/src/wasm-helper.ts
+++ b/src/wasm-helper.ts
@@ -30,7 +30,22 @@ const wasmHelper = async (opts = {}, url: string) => {
     // a lot of static file servers, so we just work around it by getting the
     // raw buffer.
     // @ts-ignore
-    const response = await fetch(url);
+    const getBaseUrl = () => {
+      const currentScriptUrl = getRunningScript()()
+      if (!currentScriptUrl) return ''
+      let baseUrl = ''
+      try {
+        baseUrl = new URL(currentScriptUrl).origin
+      } catch(err){}
+      return baseUrl
+    }
+    const getRunningScript = ()=>{
+      return ()=>{
+        return new Error().stack.match(/([^ \n])*([a-z]*:\/\/\/?)*?[a-z0-9\/\\]*\.js/ig)?.[0]
+      }
+    }
+    const baseUrl = typeof window !== 'undefined' ? getBaseUrl() : ''
+    const response = await fetch(baseUrl + url);
     const contentType = response.headers.get("Content-Type") || "";
     if ("instantiateStreaming" in WebAssembly && contentType.startsWith("application/wasm")) {
       result = await WebAssembly.instantiateStreaming(response, opts);