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fetch wasm file should append baseUrl base on currenScript running env #47

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fetch wasm file should append baseUrl base on currenScript running env #47

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17 changes: 16 additions & 1 deletion src/wasm-helper.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -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);
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