firebase.json

{
  "hosting": {
    "public": "_site",
    "cleanUrls": true,
    "trailingSlash": false,
    "headers": [
      {
        "source": "**/*.@(jpg|jpeg|gif|png|md|txt|json)",
        "headers": [
          { "key": "Cache-Control", "value": "max-age=3600" },
          { "key": "Access-Control-Allow-Origin", "value": "*" }
        ]
      },
      {
        "source": "**",
        "headers": [
          { "key": "Referrer-Policy", "value": "strict-origin-when-cross-origin"},
          { "key": "X-Content-Type-Options", "value": "nosniff"},
          { "key": "X-XSS-Protection", "value": "1;mode=block"}
        ]
      }
    ],
    "redirects": [
      { "source": "/+", "destination": "/community", "type": 301 },
      { "source": "/+dart2js", "destination": "/tools/dart-compile#js", "type": 301 },
      { "source": "/+isolates", "destination": "https://medium.com/dartlang/dart-asynchronous-programming-isolates-and-event-loops-bffc3e296a6a", "type": 301 },
      { "source": "/+lexicalscope", "destination": "/language/functions#lexical-scope", "type": 301 },
      { "source": "/+pub", "destination": "/tools/pub", "type": 301 },
      { "source": "/2.0", "destination": "/dart-2", "type": 301 },
      { "source": "/\\)", "destination": "/", "type": 301 },
      { "source": "/angular/cheatsheet", "destination": "https://angulardart.dev/cheatsheet", "type": 301 },
      { "source": "/api", "destination": "https://api.dart.dev", "type": 301 },
      { "source": "/articles/api-naming-guide{,/**}", "destination": "/guides/language/effective-dart/design", "type": 301 },
      { "source": "/articles/archive/event-loop", "destination": "https://medium.com/dartlang/dart-asynchronous-programming-isolates-and-event-loops-bffc3e296a6a", "type": 301 },
      { "source": "/articles/await-async", "destination": "/codelabs/async-await", "type": 301 },
      { "source": "/articles/converters-and-codecs", "destination": "/articles/archive/converters-and-codecs", "type": 301 },
      { "source": "/articles/creating-streams", "destination": "/articles/libraries/creating-streams", "type": 301 },
      { "source": "/articles/dart-unit-tests{,/**}", "destination": "https://github.com/dart-lang/test#writing-tests", "type": 301 },
      { "source": "/articles/dart-vm/io", "destination": "/articles/libraries/dart-io", "type": 301 },
      { "source": "/articles/dart-vm/native-extensions", "destination": "/server/c-interop-native-extensions", "type": 301 },
      { "source": "/articles/dart-vm/numeric-computation", "destination": "/articles/archive/numeric-computation", "type": 301 },
      { "source": "/articles/dart-vm/snapshots", "destination": "https://github.com/dart-lang/sdk/wiki/Snapshots", "type": 301 },
      { "source": "/articles/design-decisions/why-dart-types", "destination": "/faq#types", "type": 301 },
      { "source": "/articles/doc-comment-guidelines", "destination": "/guides/language/effective-dart/documentation", "type": 301 },
      { "source": "/articles/event-loop", "destination": "https://medium.com/dartlang/dart-asynchronous-programming-isolates-and-event-loops-bffc3e296a6a", "type": 301 },
      { "source": "/articles/feet-wet-streams{,/**}", "destination": "/tutorials/language/streams", "type": 301 },
      { "source": "/articles/futures-and-error-handling", "destination": "/guides/libraries/futures-error-handling", "type": 301 },
      { "source": "/articles/idiomatic-dart{,/**}", "destination": "/guides/language/effective-dart", "type": 301 },
      { "source": "/articles/io", "destination": "/articles/libraries/dart-io", "type": 301 },
      { "source": "/articles/js-dart-interop", "destination": "/web/libraries#js-interop", "type": 301 },
      { "source": "/articles/json-web-service", "destination": "/guides/json", "type": 301 },
      { "source": "/articles/language", "destination": "/articles", "type": 301 },
      { "source": "/articles/language/await-async", "destination": "/codelabs/async-await", "type": 301 },
      { "source": "/articles/language/mixins", "destination": "/language/mixins", "type": 301 },
      { "source": "/articles/language/optional-types", "destination": "/faq#types", "type": 301 },
      { "source": "/articles/libraries", "destination": "/articles", "type": 301 },
      { "source": "/articles/libraries/converters-and-codecs", "destination": "/articles/archive/converters-and-codecs", "type": 301 },
      { "source": "/articles/libraries/dart-io", "destination": "/guides/libraries/library-tour#dartio", "type": 301 },
      { "source": "/articles/libraries/zones", "destination": "/articles/archive/zones", "type": 301 },
      { "source": "/articles/m*{,/**}", "destination": "/articles", "type": 301 },
      { "source": "/articles/m1-language-changes{,/**}", "destination": "/guides/language/spec", "type": 301 },
      { "source": "/articles/mixins", "destination": "/language/mixins", "type": 301 },
      { "source": "/articles/mocking-with-dart", "destination": "https://pub.dev/packages/mockito", "type": 301 },
      { "source": "/articles/native-extensions-for-standalone-dart-vm", "destination": "/server/c-interop-native-extensions", "type": 301 },
      { "source": "/articles/numeric-computation", "destination": "/articles/archive/numeric-computation", "type": 301 },
      { "source": "/articles/optional-types", "destination": "/faq#types", "type": 301 },
      { "source": "/articles/serialization", "destination": "/guides/json", "type": 301 },
      { "source": "/articles/server/native-extensions", "destination": "/server/c-interop-native-extensions", "type": 301 },
      { "source": "/articles/server{,/**}", "destination": "/server", "type": 301 },
      { "source": "/articles/snapshots", "destination": "https://github.com/dart-lang/sdk/wiki/Snapshots", "type": 301 },
      { "source": "/articles/style-guide{,/**}", "destination": "/guides/language/effective-dart/style", "type": 301 },
      { "source": "/articles/using-future-based-apis{,/**}", "destination": "/codelabs/async-await", "type": 301 },
      { "source": "/articles/why-dart-types", "destination": "/faq#types", "type": 301 },
      { "source": "/articles/zones", "destination": "/articles/archive/zones", "type": 301 },
      { "source": "/assets/dart-logo-for-shares*.png", "destination": "/assets/shared/dart-logo-for-shares.png?2", "type": 301 },
      { "source": "/assets/dart-logo-wordmark*.png", "destination": "/assets/shared/dart-logo-for-shares.png?2", "type": 301 },
      { "source": "/atom.xml", "destination": "https://news.dartlang.org/feeds/posts/default", "type": 301 },
      { "source": "/books", "destination": "/resources/books", "type": 301 },
      { "source": "/cloud{,/**}", "destination": "/server/google-cloud", "type": 301 },
      { "source": "/codelabs/server{,/**}", "destination": "/tutorials/server/httpserver", "type": 301 },
      { "source": "/code-of-conduct", "destination": "/community/code-of-conduct", "type": 301 },
      { "source": "/concurrency", "destination": "/guides/language/concurrency", "type": 301 },
      { "source": "/dart", "destination": "/overview", "type": 301 },
      { "source": "/dart-2", "destination": "/articles/archive/dart-2", "type": 301 },
      { "source": "/dart-2.0", "destination": "/dart-2", "type": 301 },
      { "source": "/dart-by-example", "destination": "/samples", "type": 301 },
      { "source": "/dart-tips{,/**}", "destination": "/guides/language/effective-dart", "type": 301 },
      { "source": "/dart-vm", "destination": "/server", "type": 301 },
      { "source": "/dart-vm/:page*", "destination": "/server/:page*", "type": 301 },
      { "source": "/dart-vm/dart-by-example", "destination": "/samples", "type": 301 },
      { "source": "/dart2js-reflection", "destination": "https://github.com/dart-lang/sdk/issues/21654", "type": 301 },
      { "source": "/dartisans{,/**}", "destination": "/", "type": 301 },
      { "source": "/dartium{,/**}", "destination": "/tools#ides-and-editors", "type": 301 },
      { "source": "/devices", "destination": "/overview#platform", "type": 301 },
      { "source": "/dev{,/**}", "destination": "https://api.dart.dev/dev", "type": 301 },
      { "source": "/diagnostics", "destination": "/tools/diagnostic-messages", "type": 301 },
      { "source": "/diagnostics/:code*", "destination": "/tools/diagnostic-messages?utm_source=dartdev&utm_medium=redir&utm_id=diagcode&utm_content=:code#:code", "type": 301 },
      { "source": "/docs/api{,/**}", "destination": "https://api.dart.dev", "type": 301 },
      { "source": "/docs/cookbook", "destination": "/samples", "type": 301 },
      { "source": "/docs/dart-up-and-running/**/ch02?(.html)", "destination": "/language", "type": 301 },
      { "source": "/docs/dart-up-and-running/**/ch03?(.html)", "destination": "/guides/libraries/library-tour", "type": 301 },
      { "source": "/docs/dart-up-and-running/contents/ch04-tools-dart2js?(.html)", "destination": "/tools/dart-compile#js", "type": 301 },
      { "source": "/docs/dart-up-and-running/contents/ch04-tools-dart_analyzer?(.html)", "destination": "/tools/dart-analyze", "type": 301 },
      { "source": "/docs/dart-up-and-running/contents/ch04-tools-dartium?(.html)", "destination": "/tools#ides-and-editors", "type": 301 },
      { "source": "/docs/dart-up-and-running{,/**}", "destination": "/resources/books", "type": 301 },
      { "source": "/docs/editor", "destination": "/tools", "type": 301 },
      { "source": "/docs/editor/getting-started?(.html)", "destination": "/overview", "type": 301 },
      { "source": "/docs/getting-started{,/**}", "destination": "/overview", "type": 301 },
      { "source": "/docs/language-tour", "destination": "/language", "type": 301 },
      { "source": "/docs/library-tour", "destination": "/guides/libraries/library-tour", "type": 301 },
      { "source": "/docs/pub-package-manager", "destination": "/tools/pub", "type": 301 },
      { "source": "/docs/pub-package-manager/pubspec{,/**}", "destination": "/tools/pub/pubspec", "type": 301 },
      { "source": "/docs/serverguide?(.html)", "destination": "/server", "type": 301 },
      { "source": "/docs/spec/EnumsTC52draft.pdf", "destination": "/language/enum", "type": 301 },
      { "source": "/docs/spec/deferred-loading?(.html)", "destination": "/language/libraries#lazily-loading-a-library", "type": 301 },
      { "source": "/docs/spec{,/**}", "destination": "/guides/language/spec", "type": 301 },
      { "source": "/docs/technical-overview{,/**}", "destination": "/overview", "type": 301 },
      { "source": "/docs/tutorials/add-elements", "destination": "/tutorials/web/low-level-html/add-elements", "type": 301 },
      { "source": "/docs/tutorials/cmdline", "destination": "/tutorials/server/cmdline", "type": 301 },
      { "source": "/docs/tutorials/connect-dart-html", "destination": "/tutorials/web/low-level-html/connect-dart-html", "type": 301 },
      { "source": "/docs/tutorials/fetchdata", "destination": "/tutorials/server/fetch-data", "type": 301 },
      { "source": "/docs/tutorials/forms{,/**}", "destination": "https://angulardart.dev/guide/forms", "type": 301 },
      { "source": "/docs/tutorials/futures", "destination": "/codelabs/async-await", "type": 301 },
      { "source": "/docs/tutorials/get-started", "destination": "/tutorials/server/get-started", "type": 301 },
      { "source": "/docs/tutorials/httpserver", "destination": "/tutorials/server/httpserver", "type": 301 },
      { "source": "/docs/tutorials/indexeddb{,/**}", "destination": "https://api.dart.dev/stable/dart-indexed_db/dart-indexed_db-library.html", "type": 301 },
      { "source": "/docs/tutorials/remove-elements", "destination": "/tutorials/web/low-level-html/remove-elements", "type": 301 },
      { "source": "/docs/tutorials/shared-pkgs", "destination": "/tutorials/libraries/shared-pkgs", "type": 301 },
      { "source": "/docs/tutorials/streams", "destination": "/tutorials/language/streams", "type": 301 },
      { "source": "/docs/tutorials{,/**}", "destination": "/tutorials", "type": 301 },
      { "source": "/docs{,/**}", "destination": "/guides", "type": 301 },
      { "source": "/downloads{,.html,/**}", "destination": "/get-dart", "type": 301 },
      { "source": "/eclipse{,/**}", "destination": "/tools#ides-and-editors", "type": 301 },
      { "source": "/editor{,/**}", "destination": "/tools#ides-and-editors", "type": 301 },
      { "source": "/effective-dart", "destination": "/guides/language/effective-dart", "type": 301 },
      { "source": "/effective-dart/:page*", "destination": "/guides/language/effective-dart/:page*", "type": 301 },
      { "source": "/events/2015{,/**}", "destination": "https://www.youtube.com/watch?list=PLOU2XLYxmsIIQorIS8gagUiMau9S84vZV&v=FiXiI2Atexc", "type": 301 },
      { "source": "/events/2016{,/**}", "destination": "https://events.dartlang.org/2016/summit", "type": 301 },
      { "source": "/events{,/**}", "destination": "https://events.dartlang.org", "type": 301 },
      { "source": "/flutter", "destination": "https://flutter.dev", "type": 301 },

      { "source": "/go/analysis-server-protocol", "destination": "https://htmlpreview.github.io/?https://github.com/dart-lang/sdk/blob/main/pkg/analysis_server/doc/api.html", "type": 301 },
      { "source": "/go/automated-publishing", "destination": "/tools/pub/automated-publishing", "type": 301 }, 
      { "source": "/go/cloud", "destination": "/server/google-cloud?utm_source=go-link&utm_medium=referral&utm_campaign=go-cloud", "type": 301 },
      { "source": "/go/content-hashes", "destination": "/tools/pub/glossary#content-hashes", "type": 301 },
      { "source": "/go/core-lints", "destination": "https://github.com/dart-lang/lints", "type": 301 },
      { "source": "/go/dart-fix", "destination": "/tools/dart-fix", "type": 301 },
      { "source": "/go/dart2js-info", "destination": "https://github.com/dart-lang/sdk/tree/main/pkg/dart2js_info", "type": 301 },
      { "source": "/go/dartdoc-options-file", "destination": "https://github.com/dart-lang/dartdoc#dartdoc_optionsyaml", "type": 301 },
      { "source": "/go/data-driven-fixes", "destination": "https://github.com/flutter/flutter/wiki/Data-driven-Fixes", "type": 301 },
      { "source": "/go/dot-packages-deprecation", "destination": "https://github.com/dart-lang/language/blob/master/accepted/2.8/language-versioning/package-config-file-v2.md", "type": 301 },
      { "source": "/go/experiments", "destination": "/tools/experiment-flags", "type": 301 },
      { "source": "/go/false-secrets", "destination": "/tools/pub/pubspec#false_secrets", "type": 301 },
      { "source": "/go/ffi", "destination": "/guides/libraries/c-interop", "type": 301 },
      { "source": "/go/flutter-upper-bound-deprecation", "destination": "https://github.com/flutter/flutter/issues/68143", "type": 301 },
      { "source": "/go/non-promo-property", "destination": "/tools/non-promotion-reasons#property-or-this", "type": 301 },
      { "source": "/go/non-promo-this", "destination": "/tools/non-promotion-reasons#property-or-this", "type": 301 },
      { "source": "/go/non-promo-write", "destination": "/tools/non-promotion-reasons#write", "type": 301 },
      { "source": "/go/null-safety-migration", "destination": "/null-safety/migration-guide", "type": 301 },
      { "source": "/go/package-retraction", "destination": "/tools/pub/publishing#retract", "type": 301 },
      { "source": "/go/pub-cache", "destination": "/tools/pub/cmd/pub-cache", "type": 301 },
      { "source": "/go/pubignore", "destination": "/tools/pub/publishing#what-files-are-published", "type": 301 },
      { "source": "/go/publishing-from-github", "destination": "/tools/pub/automated-publishing#publishing-packages-using-github-actions", "type": 301 }, 
      { "source": "/go/publishing-with-service-account", "destination": "/tools/pub/automated-publishing#publishing-from-google-cloud-build", "type": 301 }, 
      { "source": "/go/sdk-constraint", "destination": "/tools/pub/pubspec#sdk-constraints", "type": 301 },
      { "source": "/go/test-docs/:page*", "destination": "https://github.com/dart-lang/test/blob/master/pkgs/test/doc/:page*", "type": 301 },
      { "source": "/go/unsound-null-safety", "destination": "/null-safety/unsound-null-safety", "type": 301 }, 

      { "source": "/googleapis", "destination": "https://github.com/dart-lang/googleapis", "type": 301 },
      { "source": "/guides/get-started", "destination": "/overview", "type": 301 },
      { "source": "/guides/language/common-prob", "destination": "/guides/language/sound-problems", "type": 301 },
      { "source": "/guides/language/concurrency", "destination": "/language/concurrency", "type": 301 },
      { "source": "/guides/language/extension-methods", "destination": "/language/extension-methods", "type": 301 },
      { "source": "/guides/language/library-tour", "destination": "/guides/libraries/library-tour", "type": 301 },
      { "source": "/guides/language/sound-dart", "destination": "/language/type-system", "type": 301 },
      { "source": "/guides/language/sound-faq", "destination": "/language/type-system", "type": 301 },
      { "source": "/guides/language/type-system", "destination": "/language/type-system", "type": 301 },
      { "source": "/guides/platforms", "destination": "/overview#platform", "type": 301 },
      { "source": "/hackathons{,/**}", "destination": "/", "type": 301 },
      { "source": "/hangouts{,/**}", "destination": "/", "type": 301 },
      { "source": "/install", "destination": "/get-dart", "type": 301 },
      { "source": "/install/**", "destination": "/get-dart", "type": 301 },
      { "source": "/install/archive", "destination": "/get-dart/archive", "type": 301 },
      { "source": "/jobs", "destination": "https://docs.flutter.dev/jobs", "type": 301 },
      { "source": "/language-tour", "destination": "/language", "type": 301 },
      { "source": "/language/basics", "destination": "/language", "type": 301 },
      { "source": "/language/collection-types", "destination": "/language/collections", "type": 301 },
      { "source": "/language/generators", "destination": "/language/functions#generators", "type": 301 },
      { "source": "/linter/lints/:lint*", "destination": "/tools/linter-rules#:lint", "type": 301 },
      { "source": "/lints", "destination": "/tools/linter-rules", "type": 301 },
      { "source": "/lints/:lint*", "destination": "/tools/linter-rules#:lint", "type": 301 },
      { "source": "/logos", "destination": "/brand", "type": 301 },
      { "source": "/mailing-list", "destination": "https://groups.google.com/a/dartlang.org/forum/#!forum/misc", "type": 301 },
      { "source": "/mobile", "destination": "/multiplatform-apps", "type": 301 },
      { "source": "/news{,/**}", "destination": "https://news.dartlang.org/", "type": 301 },
      { "source": "/null-safety/tour", "destination": "/codelabs/null-safety", "type": 301 },
      { "source": "/observatory{,/**}", "destination": "/tools/dart-devtools", "type": 301 },
      { "source": "/packages", "destination": "https://pub.dev", "type": 301 },
      { "source": "/platforms", "destination": "/overview#platform", "type": 301 },
      { "source": "/posters{,/**}", "destination": "https://github.com/dart-archive/www.dartlang.org/tree/f5f235e56e51d38d9f4d01f949d0a485f3828056/src/site/posters", "type": 301 },
      { "source": "/pub/tools/editor", "destination": "/tools", "type": 301 },
      { "source": "/redirects/sdk-download-*", "destination": "/get-dart", "type": 301 },
      { "source": "/resources/dart-tips*{,/**}", "destination": "/guides/language/effective-dart", "type": 301 },
      { "source": "/resources/dartpad-best-practices", "destination": "/tools/dartpad/dartpad-best-practices", "type": 301 },
      { "source": "/resources/dartpad-tutorials.pdf", "destination": "/resources/dartpad-best-practices", "type": 301 },
      { "source": "/samples/spirodraw{,/**}", "destination": "/samples", "type": 301 },
      { "source": "/samples/todomvc{,/**}", "destination": "/samples", "type": 301 },
      { "source": "/samples/video{,/**}", "destination": "/samples", "type": 301 },
      { "source": "/samples/sunflower{,/**}", "destination": "https://gist.github.com/5c0e154dd50af4a9ac856908061291bc", "type": 301 },
      { "source": "/samples/{,/**}", "destination": "https://github.com/dart-lang/samples/", "type": 301 },
      { "source": "/sdk-changelog-2.4.0", "destination": "https://github.com/dart-lang/sdk/blob/main/CHANGELOG.md#240---2019-06-27", "type": 301 },
      { "source": "/server/app-engine{,/**}", "destination": "/server/google-cloud", "type": 301 },
      { "source": "/server/c-interop", "destination": "/guides/libraries/c-interop", "type": 301 },
      { "source": "/server/google-cloud-platform{,/**}", "destination": "/server/google-cloud", "type": 301 },
      { "source": "/server/io-library-tour", "destination": "/guides/libraries/library-tour#dartio", "type": 301 },
      { "source": "/server/tls-ssl?(.html)", "destination": "https://api.dart.dev/stable/dart-io/SecurityContext-class.html", "type": 301 },
      { "source": "/server/tools", "destination": "/tools", "type": 301 },
      { "source": "/server/tools/dart-vm", "destination": "/tools/dart-run", "type": 301 },
      { "source": "/stable{,/**}", "destination": "https://api.dart.dev/stable", "type": 301 },
      { "source": "/support/faq?(.html)", "destination": "/faq", "type": 301 },
      { "source": "/support{,/**}", "destination": "/community", "type": 301 },
      { "source": "/tools/**/download{,.html,/**}", "destination": "/get-dart", "type": 301 },
      { "source": "/tools/**/private-files?(.html)", "destination": "/guides/libraries/private-files", "type": 301 },
      { "source": "/tools/analyzer", "destination": "/tools/dart-analyze", "type": 301 },
      { "source": "/tools/dart-pub", "destination": "/tools/pub/cmd", "type": 301 },
      { "source": "/tools/dart-vm", "destination": "/tools/dart-run", "type": 301 },
      { "source": "/tools/dart2aot", "destination": "/tools/dart-compile", "type": 301 },
      { "source": "/tools/dart2native", "destination": "/tools/dart-compile", "type": 301 },
      { "source": "/tools/dartanalyzer", "destination": "/tools/dart-analyze", "type": 301 },
      { "source": "/tools/dartdevc/**", "destination": "/tools/dartdevc", "type": 301 },
      { "source": "/tools/dartdoc", "destination": "/tools/dart-doc", "type": 301 },
      { "source": "/tools/dartdocgen{,/**}", "destination": "/tools/dart-doc", "type": 301 },
      { "source": "/tools/dartfix", "destination": "/tools/dart-fix", "type": 301 },
      { "source": "/tools/dartfmt", "destination": "/tools/dart-format", "type": 301 },
      { "source": "/tools/dartium?(.html)", "destination": "/tools#ides-and-editors", "type": 301 },
      { "source": "/tools/debian?(.html)", "destination": "/get-dart", "type": 301 },
      { "source": "/tools/docgen{,/**}", "destination": "/tools/dart-doc", "type": 301 },
      { "source": "/tools/download-archive{,/**}", "destination": "/get-dart/archive", "type": 301 },
      { "source": "/tools/download-editor?(.html)", "destination": "/tools", "type": 301 },
      { "source": "/tools/eclipse-plugin", "destination": "/tools#ides-and-editors", "type": 301 },
      { "source": "/tools/editor{,/**}", "destination": "/tools", "type": 301 },
      { "source": "/tools/faq?(.html)", "destination": "/faq", "type": 301 },
      { "source": "/tools/observatory{,/**}", "destination": "/tools/dart-devtools", "type": 301 },
      { "source": "/tools/pub", "destination": "/tools/pub/cmd", "type": 301 },
      { "source": "/tools/pub/assets-and-*transformers?(.html)", "destination": "/dart-2#tools", "type": 301 },
      { "source": "/tools/pub/cmd/pub-build?(.html)", "destination": "/tools/webdev", "type": 301 },
      { "source": "/tools/pub/cmd/pub-run?(.html)", "destination": "/tools/dart-run", "type": 301 },
      { "source": "/tools/pub/cmd/pub-serve?(.html)", "destination": "/tools/webdev", "type": 301 },
      { "source": "/tools/pub/cmd/pub-uploader?(.html)", "destination": "/tools/pub/publishing#uploaders", "type": 301 },
      { "source": "/tools/pub/create-library-packages?(.html)", "destination": "/guides/libraries/create-library-packages", "type": 301 },
      { "source": "/tools/pub/faq?(.html)", "destination": "/tools/faq#pub", "type": 301 },
      { "source": "/tools/pub/get-started?(.html)", "destination": "/guides/packages", "type": 301 },
      { "source": "/tools/pub/installing?(.html)", "destination": "/tools/pub/environment-variables", "type": 301 },
      { "source": "/tools/pub/obsolete?(.html)", "destination": "/dart-2#tools", "type": 301 },
      { "source": "/tools/pub/transformers{,/**}", "destination": "/dart-2#tools", "type": 301 },
      { "source": "/tools/sdk/archive?(.html|.)", "destination": "/get-dart/archive", "type": 301 },
      { "source": "/tools/webstorm?(.html)", "destination": "/tools#ides-and-editors", "type": 301 },
      { "source": "/tos@(|.htm|.html)", "destination": "/terms", "type": 301 },
      { "source": "/tutorials/dart-vm", "destination": "/tutorials/server", "type": 301 },
      { "source": "/tutorials/dart-vm/:page*", "destination": "/tutorials/server/:page*", "type": 301 },
      { "source": "/tutorials/language/futures", "destination": "/codelabs/async-await", "type": 301 },
      { "source": "/tutorials/web/fetch-data", "destination": "/tutorials/server/fetch-data", "type": 301 },
      { "source": "/web-ui/observables{,/**}", "destination": "https://pub.dev/packages/observable", "type": 301 },
      { "source": "/web/dart-2?(.html)", "destination": "/dart-2#web-migration", "type": 301 },
      { "source": "/{docs,tools}/{pub-package-manager,pub/cmd,pub/tools/pub}/glossary?(.html)", "destination": "/tools/pub/glossary", "type": 301 }
    ]
  },
  "emulators": {
    "hosting": {
      "port": 5500,
      "host": "0.0.0.0"
    }
  }
}