Loading a library from another server needs an update and verification plan. Start by listing the dependencies. BUILD AN INVENTORY For each external script, record its purpose, supplier, version and maintainer. Open a test page without it and identify which feature disappears. This helps distinguish an essential dependency from a forgotten experiment. WHAT SRI CHECKS MDN explains that Subresource Integrity compares a fetched resource with a specified cryptographic hash. A mismatch blocks it. Matching content does not guarantee that the library itself is safe. PLAN THE UPDATE The maintainer should know who reviews a new version and updates the related configuration. Do not copy a hash from a random post. Work with the verified file of the intended version and the supplier's guidance. For a cross-origin resource, also check MDN's CORS requirements. TEST FAILURE In a test environment, check both a successful load and a controlled mismatch. Does the main text remain available? Does a form explain why it cannot continue? Save findings without tokens or personal information. Do not alter payment integrations by guesswork. When planning a website after choosing its domain, include a dependency inventory in the brief. Use the catalogue to shortlist names, then separately decide who will maintain every external component during development. Image: a new AI photoillustration for this article; a conceptual scene, not a documentary photograph. Domain catalogue: https://domainevery.com/en/domains Primary sources: https://developer.mozilla.org/en-US/docs/Web/Security/Defenses/Subresource_Integrity
