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type TestSetupEvent = {  data: {    backend: "wasm" | "native";    html: string;    scripts: string[];  };};
addEventListener("message", async (event) => {  const { data: { backend, html, scripts } } = event as any as TestSetupEvent;  const denoDom = await import("../deno-dom-" + backend + ".ts");  const { DOMParser, Comment } = denoDom;
  (self as any).window = self;  (self as any).parent = self;  Object.defineProperty(self, "location", {    value: {      href: import.meta.url,      pathname: import.meta.url,      protocol: "file:",      host: "testmachine",      hostname: "testmachine",      port: "",      search: "",      hash: "",      origin: "",    },  });  const doc = new DOMParser().parseFromString(html, "text/html")!;  (self as any).window.document = doc;
  for (const item of Object.keys(denoDom)) {    (self as any)[item] = denoDom[item];  }
  // Assign anything with an ID to `window`  for (const element of doc.querySelectorAll("[id]")) {    const id = element.getAttribute("id");
    if (!(id in self)) {      (self as any)[id] = element;    }  }
  // Run scripts  new Function(scripts.join("\n\n"))();
  // Add fake XML document implementation to skip XML doc tests  doc.implementation.createDocument = function (    ns: any,    qualifiedName: any,    documentType: any,  ) {    const newDoc = doc.implementation.createHTMLDocument();
    // Return comments instead of PI's    newDoc.createProcessingInstruction = function (...args: any[]) {      return new Comment(args[0]);    };  };
  postMessage({    success: true,  });});