響應具有無效的HTTP狀態碼404 AngularJS

Question

我試圖用角的POST和PUT方法，但我不斷收到錯誤：

Response for preflight has invalid HTTP status code 404

我的代碼：

 $http({ 
      method: "POST", 
      url: "http://localhost:4567/api/v1/project", 
      data: project_data 
     }).then(function successCallback(response) { 
      console.log(response); 
     }), 
     function errorCallback(response) { 
      console.log('error!'); 
      console.log(response); 
     } 


     $http({ 
      method: "PUT", 
      url: "http://localhost:4567/api/v1/project/1", 
      data: data 
     }).then(function successCallback(response) { 
      console.log(response); 
     }), 
     function errorCallback(response) { 
      console.log('error!'); 
      console.log(response); 
     } 

有誰知道可能會發生什麼或如何解決？我發現的其他解決方案涉及服務器端代碼的更改（在這種情況下，我無法訪問服務器）。提前致謝！

Answer 1

如果使用Node.js的，只是這樣做：

app.options('/api/v1/project/1', function(req, res, next) { 
    res.header("Access-Control-Allow-Origin", "*"); 
    res.header("Access-Control-Allow-Headers", "Content-Type, Content-Length, Authorization, Accept,X-Requested-With"); 
    res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS"); 
    res.header("Content-Type", "application/json;charset=utf-8"); 
    res.status(204);//important 
    res.end() 
}); 
app.put('/api/v1/project/1', function(req, res, next) { 
    ...your normal code here 
})