Function removeAmpJsParamsFromSearch

src/url.js:459–469

* Removes parameters that start with amp js parameter pattern and returns the * new search string. * @param {string} urlSearch * @return {string}

(urlSearch)

 * @return {string}
 */
function removeAmpJsParamsFromSearch(urlSearch) {
  // The below regex is a combo of these original patterns. Combining these,
  // removing the corresponding `.replace` calls, and reusing
  // removeParamsFromSearch saves ~175B. Matches params in query string:
  // - /[?&]amp_js[^&]*/   amp_js_*
  // - /[?&]amp_gsa[^&]*/  amp_gsa
  // - /[?&]amp_r[^&]*/    amp_r
  // - /[?&]amp_kit[^&]*/  amp_kit
  // - /[?&]usqp[^&]*/     usqp (from goog experiment)
  return removeParamsFromSearch(urlSearch, '(amp_(js[^&=]*|gsa|r|kit)|usqp)');
}

/**
 * Removes parameters with param name and returns the new search string.