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cross-domain-storage

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library 2.0.7 ·javascript maintenance
✓ verified Jun 7, 2026
storage

cross-domain-storage v2.0.7 enables browser-localStorage sharing across subdomains and parent/child windows via postMessage. Low-maintenance, no new releases since 2016. Ideal for simple cross-origin persistence without server-side setup. Minimal API, uses iframe or window messaging. Lightweight, no external dependencies.

Resources

githubgithub.com/MatthewLarner/cross-domain-storage ↗
packagecross-domain-storage ↗
homepagegithub.com/MatthewLarner/cross-domain-storage#readme ↗

API endpoints

full doc /v1/registry/cross-domain-storage
install /v1/registry/cross-domain-storage/install