HTML页面通过Ajax调用公网web服务时,浏览器请求发送成功,但是响应的 xhr.status==0,控制台报错如下 XMLHttpRequest cannot load http://ws.webxml.com.cn/WebServices/MobileCodeWS.asmx. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is
如果用原生的AJAX是加载本地文件就不会出现错误.当然,这个jquery的load放在服务器上通过http加载还是支持的.也有例外比如在firefox和ie浏览器使用$.ajax加载本地html或txt文件时,不会报错. 当其他浏览器控制台弹出下面报错,表明这个不支持跨域浏览本地文件: Access to XMLHttpRequest at 'file:///F:/%E4%BB%A3%E7%A0%81/Jquery/a.txt' from origin 'null' has been block
在用python的bottle框架开发时,前端使用ajax跨域访问时,js代码老是进入不了success,而是进入了error,而返回的状态却是200.url直接在浏览器访问也是正常的,浏览器按F12后会发现下面这个错误提示 XMLHttpRequest cannot load http://192.168.0.118:8081/get_mobile_number/?id=1. No 'Access-Control-Allow-Origin' header is present on the r
直接上代码 plupload.addFileFilter('min_width', function (maxwidth, file, cb) { var self = this, img = new o.Image(); function finalize(result) { // cleanup img.destroy(); img = null; // if rule has been violated in one way or another, trigger an error if
XMLHttpRequest cannot load https://www.emaple.com. No 'Access-Control-Allow-Origin' header is present on the requested resource. 有时会出现这种错误,ajax进行跨域访问的时候就会报这种错 解决方法:使用jsonp跨域访问成功 $.ajax({ type: 'GET', url: 'https://www.emaple.com?interfaces', async: f