Fix root on Gradio mounted apps regression

[mussonero]

Describe the bug

@aliabid94
I wanted to address the issue regarding the recent changes made to Fix root on gradio mounted apps setup, which had been running smoothly for over a year with FastAPI and HAProxy.

After reviewing the situation, I’ve decided to revert the recent comment/adjustment, as it seems to have impacted the previously stable configuration. The setup was operating without any issues, so I believe reverting back to the original configuration will restore the expected behavior.

Have you searched existing issues? 🔎

• I have searched and found no existing issues

Reproduction

import gradio as gr

def greet(name):
    return "Hello " + name + "!"


with gr.Blocks() as demo:
    name = gr.Textbox(label="Name")
    output = gr.Textbox(label="Output Box")
    greet_btn = gr.Button("Greet")
    greet_btn.click(fn=greet, inputs=name, outputs=output, api_name="greet")

from fastapi import FastAPI
app = FastAPI()

gr.mount_gradio_app(app, demo, path="/gradio")

# run app
import uvicorn
uvicorn.run(app, host="0.0.0.0", port=8060, root_path='/myapp')

INFO:     Loading environment from '.env'
INFO:     Started server process [29254]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://0.0.0.0:8060 (Press CTRL+C to quit)
INFO:     172.22.96.1:56578 - "GET /myapp/myapp/gradio HTTP/1.1" 404 Not Found
INFO:     172.22.96.1:56582 - "GET /myapp/gradio HTTP/1.1" 307 Temporary Redirect
INFO:     172.22.96.1:56582 - "GET /myapp/myapp/gradio/ HTTP/1.1" 404 Not Found

ProxySettings

acl url_myapp path_beg /myapp

use_backend myapp if url_myapp

backend myapp
   balance roundrobin
   http-request set-header X-Forwarded-Port %[dst_port]
   http-request add-header X-Forwarded-Proto https if { ssl_fc }
   http-request replace-path /myapp[/]?(.*) /\1
   http-response replace-header ^Location (.*) /myapp/\1
   server node1-myapp 127.0.0.1:8060 check 

Screenshot

No response

Logs

System Info

Linux

Severity

I can work around it

[LukePeltier]

I'm having issues when specifying "/" as the location, it is redirecting the url to example.com//

is this related?