XMLHttpRequest无法加载file：// ... Access-Control-Allow-Origin不允许使用Origin null [英] XMLHttpRequest cannot load file://... Origin null is not allowed by Access-Control-Allow-Origin
问题描述
我看到上面提到了上述问题，但是即使在提到它们之后我也无法找到适合自己的方法，因此我冒昧地为这个问题开了一个新帖子。
I see that the above question was asked earlier, however even after referring them I wasn't able to figure out a way for me, hence I took the liberty to start a new post for this question.
我有一个包含以下代码的getjson.html文件
I have a getjson.html file containing the following code
<html>
<head>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("button").click(function(){
$.getJSON("json_data.txt",function(result){
$.each(result, function(i, field){
$("div").append(field + " ");
});
});
});
});
</script>
</head>
<body>
<button>Get JSON data</button>
<div></div>
</body>
</html>
json_data.txt包含以下内容，
The json_data.txt contains the following,
{
"firstName": "John",
"lastName": "Doe",
"age": 25
}
当我在浏览器中打开getjson.html文件时，它会出错：
When I open the getjson.html file in the browser, it gives an error:
XMLHttpRequest无法加载文件：// ...... Access-Control-Allow-Origin不允许使用Origin。
"XMLHttpRequest cannot load file://..... Origin null is not allowed by Access-Control-Allow-Origin."
有人请建议一个简单的解决方案，关于如何使这件事成为可能。
Someone Please suggest a simple solution regarding this about how could I make this thing possible.
PS：我正在编写一个Web应用程序。
P.S: I am writing a web app on go.
推荐答案
您是否直接打开HTML文件？该文件需要放在Web服务器上然后执行。通常，出于安全原因，浏览器不允许使用 file：/// 协议进行AJAX调用。
Are you directly opening an HTML file? The file needs to be placed on a web server then executed. Normally browsers don't allow file:/// protocol for AJAX calls for security reasons.
这篇关于XMLHttpRequest无法加载file：// ... Access-Control-Allow-Origin不允许使用Origin null的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
