为什么我的呼叫没有将基本身份验证标头传递到服务器？

Question

我有一台具有Apache Basic Auth设置的Prisma服务器，在React-Native中可以完美运行...但是在我们的React.js项目中，永远不会添加auth标头。

import React, {Component} from 'react'
import { ApolloClient } from 'apollo-client'
import { createHttpLink } from 'apollo-link-http'
import { setContext } from 'apollo-link-context'
import { InMemoryCache } from 'apollo-cache-inmemory'
import { ApolloProvider } from 'react-apollo'
import Home from './Container'

const httpLink = createHttpLink({
  uri: 'https://app.url/graphql',
  fetchOptions: { 
  mode: 'no-cors',
 },

})

const authLink = setContext((_, { headers }) =>
  // get the authentication token from local storage if it exists
  // const token = localStorage.getItem('token');
  // return the headers to the context so httpLink can read them
  ({
    headers: {
      Authorization: 'Basic base64goeshere',
      ...headers,
    },
  })
)

const client = new ApolloClient({
  link: authLink.concat(httpLink),
  cache: new InMemoryCache(),
})

export default class WithProvider extends Component {
  render() {
    return (
      <ApolloProvider client={client}>
        <Home auth={this.props.auth} />
      </ApolloProvider>
    )
  }
}

没有身份验证标头，并且由于缺少标头而导致401错误。