get-canonical-url/dist/get-canonical-url.cjs.map

🔗 Determines the current page's canonical URL and optionally normalizes it for consistency.

{"version":3,"file":"get-canonical-url.cjs","sources":["../node_modules/normalize-url/index.js","../src/get-canonical-url.ts"],"sourcesContent":["// https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs\nconst DATA_URL_DEFAULT_MIME_TYPE = 'text/plain';\nconst DATA_URL_DEFAULT_CHARSET = 'us-ascii';\n\nconst testParameter = (name, filters) => filters.some(filter => filter instanceof RegExp ? filter.test(name) : filter === name);\n\nconst normalizeDataURL = (urlString, {stripHash}) => {\n\tconst match = /^data:(?<type>[^,]*?),(?<data>[^#]*?)(?:#(?<hash>.*))?$/.exec(urlString);\n\n\tif (!match) {\n\t\tthrow new Error(`Invalid URL: ${urlString}`);\n\t}\n\n\tlet {type, data, hash} = match.groups;\n\tconst mediaType = type.split(';');\n\thash = stripHash ? 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data.trim() : data}${hash ? `#${hash}` : ''}`;\n};\n\nexport default function normalizeUrl(urlString, options) {\n\toptions = {\n\t\tdefaultProtocol: 'http:',\n\t\tnormalizeProtocol: true,\n\t\tforceHttp: false,\n\t\tforceHttps: false,\n\t\tstripAuthentication: true,\n\t\tstripHash: false,\n\t\tstripTextFragment: true,\n\t\tstripWWW: true,\n\t\tremoveQueryParameters: [/^utm_\\w+/i],\n\t\tremoveTrailingSlash: true,\n\t\tremoveSingleSlash: true,\n\t\tremoveDirectoryIndex: false,\n\t\tsortQueryParameters: true,\n\t\t...options,\n\t};\n\n\turlString = urlString.trim();\n\n\t// Data URL\n\tif (/^data:/i.test(urlString)) {\n\t\treturn normalizeDataURL(urlString, options);\n\t}\n\n\tif (/^view-source:/i.test(urlString)) {\n\t\tthrow new Error('`view-source:` is not supported as it is a non-standard protocol');\n\t}\n\n\tconst hasRelativeProtocol = urlString.startsWith('//');\n\tconst isRelativeUrl = !hasRelativeProtocol && /^\\.*\\//.test(urlString);\n\n\t// Prepend protocol\n\tif 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to maintain compatibility with older js engines\n\t// which do not have support for that feature.\n\tif (urlObject.pathname) {\n\t\t// TODO: Replace everything below with `urlObject.pathname = urlObject.pathname.replace(/(?<!\\b[a-z][a-z\\d+\\-.]{1,50}:)\\/{2,}/g, '/');` when Safari supports negative lookbehind.\n\n\t\t// Split the string by occurrences of this protocol regex, and perform\n\t\t// duplicate-slash replacement on the strings between those occurrences\n\t\t// (if any).\n\t\tconst protocolRegex = /\\b[a-z][a-z\\d+\\-.]{1,50}:\\/\\//g;\n\n\t\tlet lastIndex = 0;\n\t\tlet result = '';\n\t\tfor (;;) {\n\t\t\tconst match = protocolRegex.exec(urlObject.pathname);\n\t\t\tif (!match) {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tconst protocol = match[0];\n\t\t\tconst protocolAtIndex = match.index;\n\t\t\tconst intermediate = urlObject.pathname.slice(lastIndex, protocolAtIndex);\n\n\t\t\tresult += intermediate.replace(/\\/{2,}/g, '/');\n\t\t\tresult += protocol;\n\t\t\tlastIndex = 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urlString.replace(/^(?:https?:)?\\/\\//, '');\n\t}\n\n\treturn urlString;\n}\n","/*! get-canonical-url | MIT | https://github.com/jakejarvis/get-canonical-url */\nimport normalizeUrl from \"normalize-url\";\nimport type { Options as NormalizeOptions } from \"normalize-url\";\n\nexport interface Options {\n  /**\n   * Clean-up and normalize the determined canonical URL.\n   *\n   * @default false\n   */\n  readonly normalize?: boolean;\n\n  /**\n   * Options passed directly to [`normalize-url`](https://github.com/sindresorhus/normalize-url#options).\n   *\n   * Requires `options.normalize = true`.\n   *\n   * @default { stripWWW: false, stripHash: true, removeQueryParameters: true, removeTrailingSlash: false }\n   */\n  readonly normalizeOptions?: NormalizeOptions;\n\n  /**\n   * Make an educated guess using other clues if canonical isn't explicitly set in the page's `<head>`.\n   *\n   * @default false\n   */\n  readonly guess?: boolean;\n}\n\n/**\n * Returns the current page's canonical URL.\n *\n * @example\n * ```\n * // This imaginary page's <head> contains the following link tag:\n * //   <link rel=\"canonical\" href=\"https://www.example.com/\" />\n *\n * import canonicalUrl from \"get-canonical-url\";\n *\n * canonicalUrl();\n * //=> 'https://www.example.com/'\n * ```\n */\nexport default function canonicalUrl(options: Options = {}): string | undefined {\n  options = {\n    normalize: false,\n    normalizeOptions: {\n      // A few sensible normalize-url defaults:\n      // https://github.com/sindresorhus/normalize-url#options\n      stripWWW: false,\n      stripHash: true,\n      removeQueryParameters: true,\n      removeTrailingSlash: false,\n    },\n    guess: false,\n    ...options,\n  };\n\n  // Start with a blank slate\n  let url: string | undefined = undefined;\n\n  // Look for a <link rel=\"canonical\"> tag in the page's <head>\n  const linkElement: HTMLLinkElement | null = document.head.querySelector(\"link[rel='canonical']\");\n\n  if 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