How we shipped ES module integrity in browsers and made commerce and the web better for everyone!

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Shopify Engineering

Shopify has implemented Subresource Integrity (SRI) for imported JavaScript modules in Chrome and Safari, enhancing security by ensuring module scripts haven't been tampered with. This initiative involved integrating integrity metadata into import maps, allowing dynamic imports with verified integrity. The feature has successfully shipped in Chrome 127 and is in Safari 18 Beta, making ES modules and dynamic imports safer to use with SRI.

Shipping support for module script integrity in Chrome & Safari