{"id":16945763,"url":"https://github.com/jokeyrhyme/is-webcomponents-supported","last_synced_at":"2026-04-28T20:01:25.102Z","repository":{"id":33829588,"uuid":"37528290","full_name":"jokeyrhyme/is-webcomponents-supported","owner":"jokeyrhyme","description":"does this JavaScript environment support WebComponents?","archived":false,"fork":false,"pushed_at":"2020-05-25T04:08:56.000Z","size":71,"stargazers_count":1,"open_issues_count":5,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-08-15T13:20:44.543Z","etag":null,"topics":["browser","feature-detection","javascript","webcomponents"],"latest_commit_sha":null,"homepage":null,"language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"bsd-2-clause","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/jokeyrhyme.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2015-06-16T12:20:49.000Z","updated_at":"2023-03-04T17:44:41.000Z","dependencies_parsed_at":"2022-07-24T18:02:00.613Z","dependency_job_id":null,"html_url":"https://github.com/jokeyrhyme/is-webcomponents-supported","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/jokeyrhyme/is-webcomponents-supported","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jokeyrhyme%2Fis-webcomponents-supported","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jokeyrhyme%2Fis-webcomponents-supported/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jokeyrhyme%2Fis-webcomponents-supported/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jokeyrhyme%2Fis-webcomponents-supported/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/jokeyrhyme","download_url":"https://codeload.github.com/jokeyrhyme/is-webcomponents-supported/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jokeyrhyme%2Fis-webcomponents-supported/sbom","scorecard":{"id":529563,"data":{"date":"2025-08-11","repo":{"name":"github.com/jokeyrhyme/is-webcomponents-supported","commit":"780fd6df1440f492bd740384c6cf80d3f91eb223"},"scorecard":{"version":"v5.2.1-40-gf6ed084d","commit":"f6ed084d17c9236477efd66e5b258b9d4cc7b389"},"score":3,"checks":[{"name":"Code-Review","score":0,"reason":"Found 0/1 approved changesets -- score normalized to 0","details":null,"documentation":{"short":"Determines if the project requires human code review before pull requests (aka merge requests) are merged.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#code-review"}},{"name":"Pinned-Dependencies","score":-1,"reason":"no dependencies found","details":null,"documentation":{"short":"Determines if the project has declared and pinned the dependencies of its build process.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#pinned-dependencies"}},{"name":"Dangerous-Workflow","score":-1,"reason":"no workflows found","details":null,"documentation":{"short":"Determines if the project's GitHub Action workflows avoid dangerous patterns.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#dangerous-workflow"}},{"name":"Token-Permissions","score":-1,"reason":"No tokens found","details":null,"documentation":{"short":"Determines if the project's workflows follow the principle of least privilege.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#token-permissions"}},{"name":"Packaging","score":-1,"reason":"packaging workflow not detected","details":["Warn: no GitHub/GitLab publishing workflow detected."],"documentation":{"short":"Determines if the project is published as a package that others can easily download, install, easily update, and uninstall.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#packaging"}},{"name":"Binary-Artifacts","score":10,"reason":"no binaries found in the repo","details":null,"documentation":{"short":"Determines if the project has generated executable (binary) artifacts in the source repository.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#binary-artifacts"}},{"name":"Maintained","score":0,"reason":"0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0","details":null,"documentation":{"short":"Determines if the project is \"actively maintained\".","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#maintained"}},{"name":"CII-Best-Practices","score":0,"reason":"no effort to earn an OpenSSF best practices badge detected","details":null,"documentation":{"short":"Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#cii-best-practices"}},{"name":"Security-Policy","score":0,"reason":"security policy file not detected","details":["Warn: no security policy file detected","Warn: no security file to analyze","Warn: no security file to analyze","Warn: no security file to analyze"],"documentation":{"short":"Determines if the project has published a security policy.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#security-policy"}},{"name":"Fuzzing","score":0,"reason":"project is not fuzzed","details":["Warn: no fuzzer integrations found"],"documentation":{"short":"Determines if the project uses fuzzing.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#fuzzing"}},{"name":"Vulnerabilities","score":10,"reason":"0 existing vulnerabilities detected","details":null,"documentation":{"short":"Determines if the project has open, known unfixed vulnerabilities.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#vulnerabilities"}},{"name":"License","score":10,"reason":"license file detected","details":["Info: project has a license file: LICENSE:0","Info: FSF or OSI recognized license: BSD 2-Clause \"Simplified\" License: LICENSE:0"],"documentation":{"short":"Determines if the project has defined a license.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#license"}},{"name":"Signed-Releases","score":-1,"reason":"no releases found","details":null,"documentation":{"short":"Determines if the project cryptographically signs release artifacts.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#signed-releases"}},{"name":"Branch-Protection","score":0,"reason":"branch protection not enabled on development/release branches","details":["Warn: branch protection not enabled for branch 'master'"],"documentation":{"short":"Determines if the default and release branches are protected with GitHub's branch protection settings.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#branch-protection"}},{"name":"SAST","score":0,"reason":"SAST tool is not run on all commits -- score normalized to 0","details":["Warn: 0 commits out of 29 are checked with a SAST tool"],"documentation":{"short":"Determines if the project uses static code analysis.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#sast"}}]},"last_synced_at":"2025-08-20T05:23:04.590Z","repository_id":33829588,"created_at":"2025-08-20T05:23:04.590Z","updated_at":"2025-08-20T05:23:04.590Z"},"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":32396781,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-28T19:38:08.556Z","status":"ssl_error","status_checked_at":"2026-04-28T19:37:55.688Z","response_time":56,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["browser","feature-detection","javascript","webcomponents"],"created_at":"2024-10-13T21:23:40.333Z","updated_at":"2026-04-28T20:01:25.082Z","avatar_url":"https://github.com/jokeyrhyme.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# is-webcomponents-supported.js [![npm module](https://img.shields.io/npm/v/is-webcomponents-supported.svg)](https://www.npmjs.com/package/is-webcomponents-supported) [![Travis CI Status](https://travis-ci.org/jokeyrhyme/is-webcomponents-supported.svg?branch=master)](https://travis-ci.org/jokeyrhyme/is-webcomponents-supported)\n\ndoes this JavaScript environment support WebComponents?\n\n\n## What is this?\n\nI made this after reading [Polymer for the Performance obsessed](https://aerotwist.com/blog/polymer-for-the-performance-obsessed/)\nby [Paul Lewis](https://twitter.com/aerotwist), who mentions a \"good little\ncheck\" devised by [Glen Maddern](https://twitter.com/glenmaddern).\n\n\n## Supported Environments\n\nI've manually tested in a range of environments:\n\n- `true`: Chrome (43)\n\n- `false`: Node.js (0.12), Firefox (38)\n\n\n## Usage\n\n- CommonJS (e.g. Node.js, Browserify, etc) use [index.js](index.js)\n\n```javascript\nvar isWebComponentsSupported = require('is-webcomponents-supported');\nconsole.log(isWebComponentsSupported()); // `true` or `false`\n```\n\n- [dist/index.js](dist/index.js) is a UMD-wrapped version for browsers and AMD\n\n```html\n\u003cscript src=\"dist/index.js\"\u003e\u003c/script\u003e\n\u003cscript\u003e\nconsole.log(isWebComponentsSupported()); // `true` or `false`\n\u003c/script\u003e\n```\n\n## API\n\n### `isWebComponentsSupported(doc)`\n\n- @param {`Document`} [doc] a DOM Document to run tests against\n- @returns {`Boolean`} does this JavaScript environment support WebComponents?\n\nThis project uses the global `document` object if you do not provide one. If you\nare performing other tests against non-global implementations for some reason,\nthen this allows you to pass in any such object.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjokeyrhyme%2Fis-webcomponents-supported","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjokeyrhyme%2Fis-webcomponents-supported","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjokeyrhyme%2Fis-webcomponents-supported/lists"}