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:

https://en.wikipedia.org/wiki/WorldWideWeb

and

https://www.w3.org/People/Berners-Lee/WorldWideWeb.html

and

https://www.w3.org/Amaya/