错误:控制台报错 ;

network 自动发起了请求:

解决办法:

找到 \node_modules\sockjs-client\dist\sockjs.js  文件

然后 crtl + g 快捷键跳转到 1603 行 ,把他 注释掉 即可 ;ps:不需要重新启动 ;

Access to XMLHttpRequest at xxxx from origin xxx has been blocked by CORS policy: No 'Access-Control- Allow-Origin' header is present on the requested resource的更多相关文章

  1. Failed to load http://wantTOgo.com/get_sts_token/: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://fromHere.com' is therefore not allowed access.

    Failed to load http://wantTOgo.com/get_sts_token/: No 'Access-Control-Allow-Origin' header is presen ...

  2. java、ajax 跨域请求解决方案('Access-Control-Allow-Origin' header is present on the requested resource. Origin '请求源' is therefore not allowed access.)

      1.情景展示 ajax调取java服务器请求报错 报错信息如下: 'Access-Control-Allow-Origin' header is present on the requested ...

  3. WCF REST开启Cors 解决 No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access. The response had HTTP status code 405.

    现象: 编写了REST接口: [ServiceContract] public interface IService1 { [OperationContract] [WebInvoke(UriTemp ...

  4. 跨域问题解决----NO 'Access-Control-Allow-Origin' header is present on the requested resource.Origin'http://localhost:11000' is therfore not allowed access'

    NO 'Access-Control-Allow-Origin' header is present on the requested resource.Origin'http://localhost ...

  5. has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

    前端显示: has been blocked by CORS policy: Response to preflight request doesn't pass access control che ...

  6. .Net Core 处理跨域问题Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource

    网页请求报错: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Or ...

  7. Access to XMLHttpRequest at xxxx from origin ‘null‘ has been blocked by CORS policy:

    使用前后端分离的方式创建web项目的时候出现问题: 这是因为 ajax 请求的对应的域在本地的一个文件路径,比如在D盘的某个文件夹,这里存放的都是前端文件: 但是对应的服务器是 localhost 的 ...

  8. Access to XMLHttpRequest at 'XXX' from origin 'XX' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present o AJAX跨域请求解决方法

    今天出现了一个问题找了好久先看代码: 这可能是个BUG吧插入代码: dataType: 'jsonp', crossDomain: true, 最终:

  9. XMLHttpRequest cannot load ''. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin ' ' is therefore not allowed access.

    ajax跨域 禁止访问! 利用Access-Control-Allow-Origin响应头解决跨域请求

  10. ajax post上传数据时,前端出现的跨域权限问题:ccess to XMLHttpRequest at ‘’rom origin 'null' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok st

    本人前端使用多个框架时,jq  ajax传参出现如下报错: 最后发现,可能是xhr的相关默认参数被修改了.顾使用jq 传参时,一直报错,jq  ajax额外添加的关键参数: crossDomain: ...

随机推荐

  1. 在 Hub 上使用 Presidio 进行自动 PII 检测实验

    我们在 Hugging Face Hub 上托管的机器学习 (ML) 数据集中发现了一个引人关注的现象: 包含个人未经记录的私密信息.这一现象为机器学习从业者带来了一些特殊挑战. 在本篇博客中,我们将 ...

  2. 14、Spring之基于注解的声明式事务

    14.1.概述 14.1.1.编程式事务 事务功能的相关操作全部通过自己编写代码来实现: Connection conn = ...; try { // 开启事务:关闭事务的自动提交 conn.set ...

  3. 【Java】Collection 集合框架概述

    Collection 集合框架概述 1.集合.数组都是为了存储数据而产生的 2.为什么需要集合?为了更灵活方便的存储数据,且集合能存储的容量比数组更大 3.存储的概念还停留在内存活动范围内,也只是短暂 ...

  4. 【Java】【常用类】String

    String表示字符串,Java所有的字符串字面值都是String类的实例实现 String是一个final修饰的类,代表不可变的字符序列 字符串是常量,用双引号表示,值在创建之后不能更改 Strin ...

  5. 【C3】04 工作原理

    我们已经知道了CSS是做什么的以及怎么写简单的样式这样基础的CSS, 接下来我将了解到浏览器如何获取CSS.HTML和将他们加载成网页. 前置知识: 基础计算机知识.基本软件安装.简单文件知识.HTM ...

  6. 【H5】15 表单 其四 数据发送

    一旦在客户端上验证了表单数据,就可以提交表单了. 并且,由于我们在上一篇文章中介绍了验证,因此我们准备提交! 本文着眼于用户提交表单时会发生什么-数据将流向何处,以及到达表单后如何处理? 我们还将研究 ...

  7. 【CentOS】rpm包安装Jdk

    1.系统环境检查 前提情要:[如果是使用虚拟机的Linux系统,强烈建议先打个快照备份一下,以免操作失误无法重来] 首先查看系统是否存在java环境 java -version 因为点选了环境工具,这 ...

  8. 【C】Re06 数组与指针

    一.指针和数组 void pointerAndArray() { int array[5] = {1, 2, 3, 4, 5}; printf("pointer array -> %p ...

  9. pip install ale_python_interface 安装报错,ModuleNotFoundError: No module named 'ale_python_interface'——fatal error: ale_c_wrapper.h

    参考: https://www.cnblogs.com/hasakei/p/10035198.html https://blog.csdn.net/senjie_wang/article/detail ...

  10. 20.从0学ARM-移植uboot支持exynos4412

    经过前面一章的学习,我们已经了解了什么是uboot,本章主要目的是如何编译和移植uboot,增加串口.网络.emmc等功能,让他支持exynos4412开发板. 一.移植步骤 1. Uboot配置 指 ...