为什么JQuery ajax POST脚本会抛出错误400？ [英] Why does the JQuery ajax POST script throw error 400?

问题描述

我有 $。ajax（{}）更新div MSGS，但目前正在抛出错误400：错误请求。

I have $.ajax({}) that is ment to update the div MSGS, but is currently just throwing Error 400: Bad Request.

我也有一些烧瓶代码，请参阅repl。

I Also have some flask code too, see the repl.

代码：

    function ajax_(){ 
        console.log("Running func")  
        $.ajax({
          url: "/chat", 
          contentType: "application/json;", dataType: "json",
          data: JSON.stringify("SOMETHING"),
          method: 'POST',
          type: "POST", 
          success: function(){ 
            console.log("Success");  
            document.getElementById("msgs").innerHTML = $("#msgs").html();  
          }, error: function(){ 
            console.log("Error!") 
          }
        }); 
      };  
      setInterval(function(){ ajax_(); }, 1000);  

Repl： https://repl.it/@aceharvey/hy-dev

编辑：这两个问题都没有标记为重复有工作答案。

Neither of the questions that have been marked as duplicate have working answers.

推荐答案

我确信你需要发送一些数据与请求。

I am sure you need to send some data with the request.

    function ajax_(){ 
        console.log("Running func")  
        $.ajax({
          url: "/chat", 
          data: "SOMETHING" <----
          method: 'POST',
          type: "POST", 
          success: function(){ 
            console.log("Success");  
            document.getElementById("msgs").innerHTML = $("#msgs").html();  
          }, error: function(){ 
            console.log("Error!") 
          }
        }); 
      };  
      setInterval(function(){ ajax_(); }, 1000);  

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