Function joinPaths

packages/service-worker/worker/testing/mock.ts:306–308

* Join two path segments, ensuring that there is exactly one slash (`/`) between them.

(path1: string, path2: string)

 * Join two path segments, ensuring that there is exactly one slash (`/`) between them.
 */
function joinPaths(path1: string, path2: string): string {
  return `${path1.replace(/\/$/, '')}/${path2.replace(/^\//, '')}`;
}