path_prefix no longer working in 1.12.0

[gar1t]

When I run:

tensorboard --path_prefix /tb/0/

TensorBoard starts with this message (as expected):

TensorBoard 1.12.0 at http://localhost:6006/tb/0 (Press CTRL+C to quit)

But the URL http://localhost:6006/tb/0 if 404ing. The URL http://localhost:6006/tb/0/ (slash at end) loads the index page (200 response). The index page makes requests to http://localhost:6006/ as the base URL (ignores path_prefix) resulting in 404s for all requested URLs.

Behavior for 1.11.0:

• The URL http://localhost:6006/tb/0 (no slash) 404s - this is arguably an issue with the startup message from TensorBoard, which displays the base URL without a slash
• The URL http://localhost:6006/tb/0/ (terminating slash) succeeds (200 response)
• Index page requests correctly use the prefix

It would appear the regression occurred after 1.11.0.

System info:

• TensorBoard version: 1.12.0
• OS Platform and version: Linux Ubuntu 16.04
• Python version: 3.5.2

[wchargin]

Hi @gar1t! Thanks for reporting this issue.

This is being addressed in #1623, which should merge soon.

[wchargin]

I’ll keep this issue open as a tracker.

[wchargin]

This should be fixed now that #1623 has merged.