Yes, pretty close. Details here. In a nutshell various editor functionality was in the browser, and got removed. Editing was on the file system until HTTP PUT was created, and also there was a continued browser/editor called Amaya. Tim has to this day been trying to put back editing functionality into the web/browser. See:
and
and
WorldWideWeb - Wikipedia
Tim Berners-Lee: WorldWideWeb, the first Web client
Amaya Home Page