404 Errors with Vega Behind Firewall

[cfljam]

Datasette is working flawlessly for me but the vega plugin is giving 404 errors (behind a firewall) . Does it look on some non-standard port?

INFO: ('10.55.103.32', 64643) - "GET /capture_genotyping_database_V1.3/fastqdata HTTP/1.1" 200
INFO: ('10.55.103.32', 64642) - "GET /-/static/app.css?764a78 HTTP/1.1" 404
INFO: ('10.55.103.32', 64641) - "GET /-/static-plugins/datasette_vega/main.2acbb312.css HTTP/1.1" 404
INFO: ('10.55.103.32', 64640) - "GET /-/static-plugins/datasette_vega/main.08f5d3d8.js HTTP/1.1" 404
INFO: ('10.55.103.32', 64643) - "GET /favicon.ico HTTP/1.1" 200

[ypotier]

I have the exact same issue but I am local so there is no firewall involved.

INFO:     127.0.0.1:59034 - "GET / HTTP/1.1" 200 OK
INFO:     127.0.0.1:59034 - "GET /-/static/app.css?ffa51a HTTP/1.1" 404 Not Found
INFO:     127.0.0.1:59040 - "GET /-/static-plugins/datasette_vega/main.2acbb312.css HTTP/1.1" 404 Not Found
INFO:     127.0.0.1:59041 - "GET /-/static-plugins/datasette_vega/main.08f5d3d8.js HTTP/1.1" 404 Not Found
INFO:     127.0.0.1:59041 - "GET /favicon.ico HTTP/1.1" 200 OK

I have datasette v0.34 installed.