Rerun serve does not work correctly on the server

[npmhung]

Describe the bug rr.serve does not work as expected when running on the server.

To Reproduce Steps to reproduce the behavior:

• I run the following command on the server: rerun --serve
• On my local machine, I tried to forward from the server with: ssh name@address -L 9090:localhost:9090 -NfT
• On the server, I run the following code to generate data:

  
  import rerun as rr
  import numpy as np

def log_data() -> None: SIZE = 10

pos_grid = np.meshgrid(*[np.linspace(-10, 10, SIZE)]*3)
positions = np.vstack([d.reshape(-1) for d in pos_grid]).T

col_grid = np.meshgrid(*[np.linspace(0, 255, SIZE)]*3)
colors = np.vstack([c.reshape(-1) for c in col_grid]).astype(np.uint8).T

rr.log(
    "my_points",
    rr.Points3D(positions, colors=colors, radii=0.5)
)

rr.init("rerun_example_my_data", spawn=False)

log_data() rr.connect('0.0.0.0:9876')

- The log on the terminal showed that my data has been sent to the rerun host: "New SDK client connected from: 127.0.0.1:39080"
- On the local machine, I open http://localhost:9090?url=ws://localhost:9877 on the browser. However, only the default page shows up.
![image](https://github.com/user-attachments/assets/22e7538e-a8b4-4a77-9af3-3bac82f9fc84)

**Expected behavior**
I expect the web viewer to show to correct data such as https://rerun.io/examples/feature-showcase/minimal.
If I do all of these steps on my local machine only, the the web viewer shows the correct data.

**Screenshots**
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**Backtrace**
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**Desktop (please complete the following information):**
 - OS: <!-- e.g. macOS Monterey 12.6 -->
 - Local machine/server: Ubuntu 22.04

**Rerun version**
<!-- Paste the output of `rerun --version` here. --> 
0.19.1

**Additional context**
<!-- Add any other context about the problem here. -->

[emilk]

Is there any helpful output in the developer console of the browser? This is maybe a CORS issue?

[npmhung]

@emilk I don't know how to do that or what should I look for, but I'm happy to try if you can provide me some instructions. I also try to load an rrd directly from the server side with rerun *.rrd --serve, but it did not work too.