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8 changes: 4 additions & 4 deletions aspnetmvc/DataManager/corsdatafetching.md
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---
layout: post
title: CORS Data Fetching
description: CORS Data Fetching
title: CORS Data Fetching in ASP.NET MVC DataManager Control | Syncfusion
description: Learn here all about cors data fetching support in Syncfusion Essential ASP.NET MVC DataManager control, it's elements and more.
platform: ejmvc
control: DataManager
documentation: ug
keywords: CORS Data Fetching, SAME-ORIGIN POLICY, Access-Control-Allow-Origin, Access-Control-Request-Method, Access-Control-Request-Headers

---
# CORS Data Fetching
# CORS Data Fetching in ASP.NET MVC DataManager

The Cross-Origin Resource Sharing (CORS) mechanism enable secure cross-domain data transfers.

## SAME-ORIGIN POLICY

This policy defined the rule for, “how a web page can be accessed by an external resource”. Browsers wont permits a request to access the resources who origin is differ than the current page. To overcome the restriction of same-origin policy, we can use a technique called Cross-origin resource sharing.

![](CORS_images/SAME-ORIGIN1.png)
![Same-origin policy in ASP.NET MVC DataManager.](cors_images/aspnet-mvc-datamanager-same-origin-policy.png)

## Access-Control-Allow-Origin

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