Following the README, after building successfully, I run python server on localhost and go to openclaw.html, I get this:

And the log shows:
127.0.0.1 - - [23/Aug/2021 22:38:52] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [23/Aug/2021 22:39:30] "GET /openclaw.html HTTP/1.1" 200 -
127.0.0.1 - - [23/Aug/2021 22:39:30] code 404, message File not found
127.0.0.1 - - [23/Aug/2021 22:39:30] "GET /openclaw.js HTTP/1.1" 404 -
Following the README, after building successfully, I run python server on localhost and go to openclaw.html, I get this:
And the log shows: