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創建一個MEAN堆棧應用程序，我有一個角度組件，在頁面加載時向亞馬遜產品API發出請求。我正在本地運行和測試本地主機（節點/快遞後端）。角度CORS與亞馬遜產品API
這裏是我的組件的基本要求代碼：
getAmazonTackle(amz:amazonservice) {
var req:Object = {
method: this.amazonservice.Method,
url: this.amazonservice.Endpoint,
headers: {
//"Access-Control-Allow-Origin":"*"
},
data: this.amazonservice.Data,
withCredentials: false
}
console.log(JSON.parse(JSON.stringify(req)));
this.$http(req).then(
function(response) {
console.dir('The response: '+response);
},
function(response) {
console.dir(response);
console.dir('The error:'+response);
}
)
}
當我沒有Access-Control-Allow-Origin頭，訪問我呈現在下面的瀏覽器頁面Chrome的開發者控制檯：
XMLHttpRequest cannot load http://webservices.amazon.com/onca/xml?.
No 'Access-Control-Allow-Origin' header is present on the requested resource.
Origin 'http://localhost:3000' is therefore not allowed access.
當我添加了Access-Control-Allow-Origin頭，我收到以下內容：
Response to preflight request doesn't pass access control check:
No 'Access-Control-Allow-Origin' header is present on the requested resource.
Origin 'http://localhost:3000' is therefore not allowed access.
我想確定的是，如果我這樣做不正確，或者如果亞馬遜API不支持CORS。