Ограничения CORS для fetch запросов в локальную сеть из локальных файлов

const xmlString = `
<Root>
  <Customers>
    <Customer CustomerID="GREAL">
      <CompanyName>Great Lakes Food Market</CompanyName>
      <ContactName>Howard Snyder</ContactName>
      <ContactTitle>Marketing Manager</ContactTitle>
      <Phone>(503) 555-7555</Phone>
      <FullAddress>
        <Address>2732 Baker Blvd.</Address>
        <City>Eugene</City>
        <Region>OR</Region>
        <PostalCode>97403</PostalCode>
        <Country>USA</Country>
      </FullAddress>
    </Customer>
    <Customer CustomerID="HUNGC">
      <CompanyName>Hungry Coyote Import Store</CompanyName>
      <ContactName>Yoshi Latimer</ContactName>
      <ContactTitle>Sales Representative</ContactTitle>
      <Phone>(503) 555-6874</Phone>
      <Fax>(503) 555-2376</Fax>
      <FullAddress>
        <Address>City Center Plaza 516 Main St.</Address>
        <City>Elgin</City>
        <Region>OR</Region>
        <PostalCode>97827</PostalCode>
        <Country>USA</Country>
      </FullAddress>
    </Customer>
    <Customer CustomerID="LAZYK">
      <CompanyName>Lazy K Kountry Store</CompanyName>
      <ContactName>John Steel</ContactName>
      <ContactTitle>Marketing Manager</ContactTitle>
      <Phone>(509) 555-7969</Phone>
      <Fax>(509) 555-6221</Fax>
      <FullAddress>
        <Address>12 Orchestra Terrace</Address>
        <City>Walla Walla</City>
        <Region>WA</Region>
        <PostalCode>99362</PostalCode>
        <Country>USA</Country>
      </FullAddress>
    </Customer>
    <Customer CustomerID="LETSS">
      <CompanyName>Let's Stop N Shop</CompanyName>
      <ContactName>Jaime Yorres</ContactName>
      <ContactTitle>Owner</ContactTitle>
      <Phone>(415) 555-5938</Phone>
      <FullAddress>
        <Address>87 Polk St. Suite 5</Address>
        <City>San Francisco</City>
        <Region>CA</Region>
        <PostalCode>94117</PostalCode>
        <Country>USA</Country>
      </FullAddress>
    </Customer>
  </Customers>
</Root>
`

const fetchScript = (url, cb) => {
    const script = document.createElement('script');
    script.src = url;
    script.addEventListener('load', () => cb());
    document.body.append(script);
};
const fn = () => {
    // xmlString должна быть в загружаемом файле
    //console.log(xmlString)
    const parser = new DOMParser();
    const xml = parser.parseFromString(xmlString, "text/xml");
    const on = xml.getElementsByTagName('CompanyName')
    for (const o of on) {
        console.log(o.textContent)
    }
    
}
 
fetchScript('file:///C:/tmp/tmp.js', fn);

const resp = await fetch(`http://192.168.1./${aaa}?${bbb}`, { cache: "no-store" });
const resptxt = await resp.text();