static int ai_forgetHttpRequestsForPath(S path) {
  new L<S> toInvalidate;
  for (S s : ai_texts("$X", "was for path", path))
    if (isCIPrefixPlusGlobalID(s, "HTTP request "))
      toInvalidate.add(s);
  ret ai_invalidateTerms(toInvalidate);
}