Mastering CORS: 10 Crucial Tips for Effective Implementation
Get practical tips and expert advice on CORS implementation in .NET with our developer’s guide.
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3 min read4 days ago
Introduction
Cross-Origin Resource Sharing (CORS) is a process which protects your APIs from defined domains, method types or headers and the properties are defined while adding the CORS policy.
Getting Started
Please find below 10 tips to configure CORS in .NET applications.
1. Understand CORS Basics
To set up the handshake between the UI and the API layer, a basic understanding of how CORS headers are required such as
Access-Control-Allow-OriginAccess-Control-Allow-MethodsAccess-Control-Allow-Headers
Example: The CORS headers define which domains can access your APIs.
access-control-allow-origin: https://example.com2. Configure CORS in Startup.cs
You can configure CORS in Program.cs by using CORS middleware as shown below.
Example
public void…
