404 on some images and fonts behind proxy

I am using tensorboard behind a proxy at www.domain.com/tensorboard and it is making requests to paths such as www.domain.com/font-roboto/... and www.domain.com/tf-interactive-inference-dashboard/...

Can these be changed to have the /tensorboard prefix? FWIW, the --path_prefix option does not add the prefix to these urls.

For bug reports, please include the following:

• TensorBoard version (from pip package, also printed out when running tensorboard): 1.12.2
• TensorFlow version if different from TensorBoard: 1.12.0
• OS Platform and version (e.g., Linux Ubuntu 16.04): Ubuntu 18.04
• Python version (e.g. 2.7, 3.5): 3.6.7
• For browser-related issues:
  • Browser type and version (e.g. Chrome 64.0.3282.140)
  • Screenshot if it's a visual issue

Please describe the bug as clearly as possible, and if possible provide a minimal example (code, data, and/or command line) to reproduce the issue. Thanks!

Reproduce TensorBoard 1.12.2 behind the /tensorboard proxy prefix with --path_prefix, then trace how the frontend generates requests for font-roboto and tf-interactive-inference-dashboard. Done means those requests include the /tensorboard prefix and no longer return 404.