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Ensuring Script Integrity with SRI

Introduction

In today's web development landscape, integrating third-party scripts is common but poses security risks. Subresource Integrity (SRI) is a security feature that enables browsers to verify that fetched resources are delivered without unexpected manipulation.

What is SRI?

Subresource Integrity (SRI) is a security feature that allows web developers to ensure that a file fetched from a third-party source has not been altered. It uses cryptographic hashes to validate the integrity of the file.

Important: SRI only works with CORS-enabled resources. Ensure that your resources support CORS.

How to Use SRI

To implement SRI, follow these steps:

  1. Generate a hash for the script.
  2. Add the hash to the `