Method mapUrlToFilePath

server.js:269–342

(url)

   *    /resource/ matches /resource/index.html
   */
  mapUrlToFilePath(url) {
    // Note: `localhost` is not important here, any host would work
    let u = new URL(url, "http://localhost/");
    url = u.pathname;

    // Remove PathPrefix from start of URL
    if (this.options.pathPrefix !== "/") {
      // Requests to root should redirect to new pathPrefix
      if(url === "/") {
        return {
          statusCode: 302,
          url: this.options.pathPrefix,
        }
      }

      // Requests to anything outside of root should fail with 404
      if (!url.startsWith(this.options.pathPrefix)) {
        return {
          statusCode: 404,
        };
      }

      url = url.slice(this.options.pathPrefix.length - 1);
    }

    let rawPath = this.getOutputDirFilePath(url);
    if (this.isOutputFilePathExists(rawPath)) {
      return {
        statusCode: 200,
        filepath: rawPath,
      };
    }

    let indexHtmlPath = this.getOutputDirFilePath(url, this.options.indexFileName);
    let indexHtmlExists = fs.existsSync(indexHtmlPath);

    let htmlPath = this.getOutputDirFilePath(url, ".html");
    let htmlExists = fs.existsSync(htmlPath);

    // /resource/ => /resource/index.html
    if (indexHtmlExists && url.endsWith("/")) {
      return {
        statusCode: 200,
        filepath: indexHtmlPath,
      };
    }
    // /resource => resource.html
    if (htmlExists && !url.endsWith("/")) {
      return {
        statusCode: 200,
        filepath: htmlPath,
      };
    }

    // /resource => redirect to /resource/
    if (indexHtmlExists && !url.endsWith("/")) {
      return {
        statusCode: 301,