{"adoption": {"forks": 108, "observed_at": "2026-08-28T04:05:20.135755+00:00", "stars": 1671}, "canonical_url": "https://ross.abutalabs.com/products/across-tabs", "card": {"archived": false, "artifact_type": "library", "description": "Easy communication between cross-origin browser tabs. Simplified \"CORS\"ing!", "domain": ["web-development", "frontend", "browser-extensions"], "enriched": true, "function": ["websocket", "middleware", "developer-tools"], "health_score": 20, "homepage": "https://engineering.wingify.com/across-tabs", "language": "JavaScript", "license": "MIT", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["wingify/across-tabs"], "name": "wingify/across-tabs", "platform": ["browser", "cross-platform"], "pushed_at": "2023-09-11T09:52:22+00:00", "repo": "wingify/across-tabs", "stars": 1671, "tags": ["postmessage", "cross-origin", "browser-tabs", "tabs-communication", "handshake", "umd", "es6"], "topics": ["browser-tabs", "tabs-comunication", "postmessage", "tabs", "communication-library", "communication-channel", "handshake-mechanism", "cross-origin", "sessionstorage", "es6", "webpack", "karma-plugin", "jasmine-tests", "istanbul", "isparta", "babel", "tabs-api", "event-driven", "new-tab", "hacktoberfest"], "urls": [], "use_cases": ["communicate between browser tabs from different origins", "send messages from a parent tab to child tabs it opened", "disable a button until a newly opened tab completes a handshake", "get a list of all child tabs opened by the current tab", "execute custom callbacks in a child tab when the parent sends a message", "coordinate state across multiple tabs of a web app"], "what_it_is": "AcrossTabs is a small (~4 KB gzipped) JavaScript library that enables safe communication between cross-origin browser tabs using the PostMessage API. It provides a handshake mechanism between parent and child tabs along with a full API for tab information and custom callbacks.", "when_to_avoid": ["you only need same-origin tab communication (BroadcastChannel or storage events are simpler)", "your project uses modern APIs and you don't need the handshake abstraction", "you need actively developed features - the project is in maintenance mode"], "when_to_choose": ["you need cross-origin tab-to-tab messaging that plain localStorage or BroadcastChannel can't safely provide", "you want a tiny UMD library that works everywhere without a framework", "you need a handshake flow to verify child tabs before enabling UI"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/across-tabs", "repo": "wingify/across-tabs", "role": "main", "score": 32}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T03:42:42.980993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "dfc5306beb71ab69ab04f11f26d7f0ef8cbc9870f906b026a19738beb9dfd554", "fetched_at": "2026-08-28T04:05:20.135755+00:00", "kind": "readme", "missing": false, "url": "https://github.com/wingify/across-tabs"}, {"content_hash": "44c5ca0c175f372fedbd5b7a0cb5ec1693714fadce813244004f3dbd402c7c82", "fetched_at": "2026-08-29T11:16:13.002697+00:00", "kind": "homepage", "missing": false, "url": "https://engineering.wingify.com/across-tabs"}, {"content_hash": "0f9d2e45259cf65b017af6e6584f37e9b37eb0c13e51dd86054274adacb008c0", "fetched_at": "2026-08-29T11:16:13.011154+00:00", "kind": "site_page", "missing": false, "url": "https://engineering.wingify.com/about"}, {"content_hash": "59786e534d557de650a46312c960c4bf379cd0880eff87426a80f0c4abe9e08c", "fetched_at": "2026-08-29T11:16:13.012960+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/across-tabs"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T03:42:42.980993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "dfc5306beb71ab69ab04f11f26d7f0ef8cbc9870f906b026a19738beb9dfd554", "fetched_at": "2026-08-28T04:05:20.135755+00:00", "kind": "readme", "missing": false, "url": "https://github.com/wingify/across-tabs"}, {"content_hash": "44c5ca0c175f372fedbd5b7a0cb5ec1693714fadce813244004f3dbd402c7c82", "fetched_at": "2026-08-29T11:16:13.002697+00:00", "kind": "homepage", "missing": false, "url": "https://engineering.wingify.com/across-tabs"}, {"content_hash": "0f9d2e45259cf65b017af6e6584f37e9b37eb0c13e51dd86054274adacb008c0", "fetched_at": "2026-08-29T11:16:13.011154+00:00", "kind": "site_page", "missing": false, "url": "https://engineering.wingify.com/about"}, {"content_hash": "59786e534d557de650a46312c960c4bf379cd0880eff87426a80f0c4abe9e08c", "fetched_at": "2026-08-29T11:16:13.012960+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/across-tabs"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T03:42:42.980993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "dfc5306beb71ab69ab04f11f26d7f0ef8cbc9870f906b026a19738beb9dfd554", "fetched_at": "2026-08-28T04:05:20.135755+00:00", "kind": "readme", "missing": false, "url": "https://github.com/wingify/across-tabs"}, {"content_hash": "44c5ca0c175f372fedbd5b7a0cb5ec1693714fadce813244004f3dbd402c7c82", "fetched_at": "2026-08-29T11:16:13.002697+00:00", "kind": "homepage", "missing": false, "url": "https://engineering.wingify.com/across-tabs"}, {"content_hash": "0f9d2e45259cf65b017af6e6584f37e9b37eb0c13e51dd86054274adacb008c0", "fetched_at": "2026-08-29T11:16:13.011154+00:00", "kind": "site_page", "missing": false, "url": "https://engineering.wingify.com/about"}, {"content_hash": "59786e534d557de650a46312c960c4bf379cd0880eff87426a80f0c4abe9e08c", "fetched_at": "2026-08-29T11:16:13.012960+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/across-tabs"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T03:42:42.980993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "dfc5306beb71ab69ab04f11f26d7f0ef8cbc9870f906b026a19738beb9dfd554", "fetched_at": "2026-08-28T04:05:20.135755+00:00", "kind": "readme", "missing": false, "url": "https://github.com/wingify/across-tabs"}, {"content_hash": "44c5ca0c175f372fedbd5b7a0cb5ec1693714fadce813244004f3dbd402c7c82", "fetched_at": "2026-08-29T11:16:13.002697+00:00", "kind": "homepage", "missing": false, "url": "https://engineering.wingify.com/across-tabs"}, {"content_hash": "0f9d2e45259cf65b017af6e6584f37e9b37eb0c13e51dd86054274adacb008c0", "fetched_at": "2026-08-29T11:16:13.011154+00:00", "kind": "site_page", "missing": false, "url": "https://engineering.wingify.com/about"}, {"content_hash": "59786e534d557de650a46312c960c4bf379cd0880eff87426a80f0c4abe9e08c", "fetched_at": "2026-08-29T11:16:13.012960+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/across-tabs"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T03:42:42.980993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "dfc5306beb71ab69ab04f11f26d7f0ef8cbc9870f906b026a19738beb9dfd554", "fetched_at": "2026-08-28T04:05:20.135755+00:00", "kind": "readme", "missing": false, "url": "https://github.com/wingify/across-tabs"}, {"content_hash": "44c5ca0c175f372fedbd5b7a0cb5ec1693714fadce813244004f3dbd402c7c82", "fetched_at": "2026-08-29T11:16:13.002697+00:00", "kind": "homepage", "missing": false, "url": "https://engineering.wingify.com/across-tabs"}, {"content_hash": "0f9d2e45259cf65b017af6e6584f37e9b37eb0c13e51dd86054274adacb008c0", "fetched_at": "2026-08-29T11:16:13.011154+00:00", "kind": "site_page", "missing": false, "url": "https://engineering.wingify.com/about"}, {"content_hash": "59786e534d557de650a46312c960c4bf379cd0880eff87426a80f0c4abe9e08c", "fetched_at": "2026-08-29T11:16:13.012960+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/across-tabs"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T03:42:42.980993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "dfc5306beb71ab69ab04f11f26d7f0ef8cbc9870f906b026a19738beb9dfd554", "fetched_at": "2026-08-28T04:05:20.135755+00:00", "kind": "readme", "missing": false, "url": "https://github.com/wingify/across-tabs"}, {"content_hash": "44c5ca0c175f372fedbd5b7a0cb5ec1693714fadce813244004f3dbd402c7c82", "fetched_at": "2026-08-29T11:16:13.002697+00:00", "kind": "homepage", "missing": false, "url": "https://engineering.wingify.com/across-tabs"}, {"content_hash": "0f9d2e45259cf65b017af6e6584f37e9b37eb0c13e51dd86054274adacb008c0", "fetched_at": "2026-08-29T11:16:13.011154+00:00", "kind": "site_page", "missing": false, "url": "https://engineering.wingify.com/about"}, {"content_hash": "59786e534d557de650a46312c960c4bf379cd0880eff87426a80f0c4abe9e08c", "fetched_at": "2026-08-29T11:16:13.012960+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/across-tabs"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:05:20.135755+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T03:42:42.980993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "dfc5306beb71ab69ab04f11f26d7f0ef8cbc9870f906b026a19738beb9dfd554", "fetched_at": "2026-08-28T04:05:20.135755+00:00", "kind": "readme", "missing": false, "url": "https://github.com/wingify/across-tabs"}, {"content_hash": "44c5ca0c175f372fedbd5b7a0cb5ec1693714fadce813244004f3dbd402c7c82", "fetched_at": "2026-08-29T11:16:13.002697+00:00", "kind": "homepage", "missing": false, "url": "https://engineering.wingify.com/across-tabs"}, {"content_hash": "0f9d2e45259cf65b017af6e6584f37e9b37eb0c13e51dd86054274adacb008c0", "fetched_at": "2026-08-29T11:16:13.011154+00:00", "kind": "site_page", "missing": false, "url": "https://engineering.wingify.com/about"}, {"content_hash": "59786e534d557de650a46312c960c4bf379cd0880eff87426a80f0c4abe9e08c", "fetched_at": "2026-08-29T11:16:13.012960+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/across-tabs"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T03:42:42.980993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "dfc5306beb71ab69ab04f11f26d7f0ef8cbc9870f906b026a19738beb9dfd554", "fetched_at": "2026-08-28T04:05:20.135755+00:00", "kind": "readme", "missing": false, "url": "https://github.com/wingify/across-tabs"}, {"content_hash": "44c5ca0c175f372fedbd5b7a0cb5ec1693714fadce813244004f3dbd402c7c82", "fetched_at": "2026-08-29T11:16:13.002697+00:00", "kind": "homepage", "missing": false, "url": "https://engineering.wingify.com/across-tabs"}, {"content_hash": "0f9d2e45259cf65b017af6e6584f37e9b37eb0c13e51dd86054274adacb008c0", "fetched_at": "2026-08-29T11:16:13.011154+00:00", "kind": "site_page", "missing": false, "url": "https://engineering.wingify.com/about"}, {"content_hash": "59786e534d557de650a46312c960c4bf379cd0880eff87426a80f0c4abe9e08c", "fetched_at": "2026-08-29T11:16:13.012960+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/across-tabs"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T03:42:42.980993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "dfc5306beb71ab69ab04f11f26d7f0ef8cbc9870f906b026a19738beb9dfd554", "fetched_at": "2026-08-28T04:05:20.135755+00:00", "kind": "readme", "missing": false, "url": "https://github.com/wingify/across-tabs"}, {"content_hash": "44c5ca0c175f372fedbd5b7a0cb5ec1693714fadce813244004f3dbd402c7c82", "fetched_at": "2026-08-29T11:16:13.002697+00:00", "kind": "homepage", "missing": false, "url": "https://engineering.wingify.com/across-tabs"}, {"content_hash": "0f9d2e45259cf65b017af6e6584f37e9b37eb0c13e51dd86054274adacb008c0", "fetched_at": "2026-08-29T11:16:13.011154+00:00", "kind": "site_page", "missing": false, "url": "https://engineering.wingify.com/about"}, {"content_hash": "59786e534d557de650a46312c960c4bf379cd0880eff87426a80f0c4abe9e08c", "fetched_at": "2026-08-29T11:16:13.012960+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/across-tabs"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T03:42:42.980993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "dfc5306beb71ab69ab04f11f26d7f0ef8cbc9870f906b026a19738beb9dfd554", "fetched_at": "2026-08-28T04:05:20.135755+00:00", "kind": "readme", "missing": false, "url": "https://github.com/wingify/across-tabs"}, {"content_hash": "44c5ca0c175f372fedbd5b7a0cb5ec1693714fadce813244004f3dbd402c7c82", "fetched_at": "2026-08-29T11:16:13.002697+00:00", "kind": "homepage", "missing": false, "url": "https://engineering.wingify.com/across-tabs"}, {"content_hash": "0f9d2e45259cf65b017af6e6584f37e9b37eb0c13e51dd86054274adacb008c0", "fetched_at": "2026-08-29T11:16:13.011154+00:00", "kind": "site_page", "missing": false, "url": "https://engineering.wingify.com/about"}, {"content_hash": "59786e534d557de650a46312c960c4bf379cd0880eff87426a80f0c4abe9e08c", "fetched_at": "2026-08-29T11:16:13.012960+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/across-tabs"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": ["no_releases"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3491, "days_push": 1087, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 32, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}