Method completeURL

front_end/core/common/ParsedURL.ts:332–391

(baseURL: Platform.DevToolsPath.UrlString, href: string)

  }

  static completeURL(baseURL: Platform.DevToolsPath.UrlString, href: string): Platform.DevToolsPath.UrlString|null {
    // Return special URLs as-is.
    if (href.startsWith('data:') || href.startsWith('blob:') || href.startsWith('javascript:') ||
        href.startsWith('mailto:')) {
      return href as Platform.DevToolsPath.UrlString;
    }

    // Return absolute URLs with normalized path and other components as-is.
    const trimmedHref = href.trim();
    const parsedHref = this.fromString(trimmedHref);
    if (parsedHref?.scheme) {
      const securityOrigin = parsedHref.securityOrigin();
      const pathText = normalizePath(parsedHref.path);
      const queryText = parsedHref.queryParams && `?${parsedHref.queryParams}`;
      const fragmentText = parsedHref.fragment && `#${parsedHref.fragment}`;
      return securityOrigin + pathText + queryText + fragmentText as Platform.DevToolsPath.UrlString;
    }

    const parsedURL = this.fromString(baseURL);
    if (!parsedURL) {
      return null;
    }

    if (parsedURL.isDataURL()) {
      return href as Platform.DevToolsPath.UrlString;
    }

    if (href.length > 1 && href.charAt(0) === '/' && href.charAt(1) === '/') {
      // href starts with "//" which is a full URL with the protocol dropped (use the baseURL protocol).
      return parsedURL.scheme + ':' + href as Platform.DevToolsPath.UrlString;
    }

    const securityOrigin = parsedURL.securityOrigin();
    const pathText = parsedURL.path;
    const queryText = parsedURL.queryParams ? '?' + parsedURL.queryParams : '';

    // Empty href resolves to a URL without fragment.
    if (!href.length) {
      return securityOrigin + pathText + queryText as Platform.DevToolsPath.UrlString;
    }

    if (href.charAt(0) === '#') {
      return securityOrigin + pathText + queryText + href as Platform.DevToolsPath.UrlString;
    }

    if (href.charAt(0) === '?') {
      return securityOrigin + pathText + href as Platform.DevToolsPath.UrlString;
    }

    const hrefMatches = href.match(/^[^#?]*/);
    if (!hrefMatches || !href.length) {
      throw new Error('Invalid href');
    }
    let hrefPath: string = hrefMatches[0];
    const hrefSuffix = href.substring(hrefPath.length);
    if (hrefPath.charAt(0) !== '/') {
      hrefPath = parsedURL.folderPathComponents + '/' + hrefPath;
    }