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CORS Essentials

You're reading from   CORS Essentials Access web resources on different domains

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Product type Paperback
Published in May 2017
Publisher
ISBN-13 9781784393779
Length 144 pages
Edition 1st Edition
Languages
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Author (1):
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Rajesh Gunasundaram Rajesh Gunasundaram
Author Profile Icon Rajesh Gunasundaram
Rajesh Gunasundaram
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Table of Contents (10) Chapters Close

Preface 1. Why You Need CORS FREE CHAPTER 2. Creating Proxies for CORS 3. Usability and Security 4. CORS in Popular Content Management Frameworks 5. CORS in Windows 6. CORS in the Cloud 7. CORS in Node.js 8. CORS Best Practices Index

CORS in the ASP.NET Web API


The ASP.NET Web API is a HTTP service-oriented framework suitable for implementing cross-domain requests via CORS in web applications.

ASP.NET Web API is a framework that makes it easy to build HTTP services that reach a broad range of clients, including browsers and mobile devices. ASP.NET Web API is an ideal platform for building RESTful applications on the .NET Framework.

The EnableCorsAttribute custom class contains properties for the allowed origins, HTTP methods, request headers, response headers, and whether credentials are allowed.

The CorsMessageHandler checks the policy in the attribute for the HTTP method being invoked and sends the appropriate CORS response headers.

Enabling CORS in the ASP.NET Web API

When using the ASP.NET Web API, you may enable CORS globally on the IIS server using the methods already discussed.

It is preferable to add the CORS headers only on the pages, and for classes and methods, where they are needed. The next section shows how to...

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