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Use routes_pathname_prefix for internal Alive URL in Dash app #3281

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Merged
merged 1 commit into from
Apr 16, 2025
Merged

Use routes_pathname_prefix for internal Alive URL in Dash app #3281

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4 changes: 3 additions & 1 deletion dash/_jupyter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -294,6 +294,8 @@ def run_app(
else:
requests_pathname_prefix = "/"

routes_pathname_prefix = app.config.get("routes_pathname_prefix", "/")

# FIXME Move config initialization to main dash __init__
# low-level setter to circumvent Dash's config locking
# normally it's unsafe to alter requests_pathname_prefix this late, but
Expand Down Expand Up @@ -355,7 +357,7 @@ def run():
self._servers[(host, port)] = server

# Wait for server to start up
alive_url = f"http://{host}:{port}{requests_pathname_prefix}_alive_{JupyterDash.alive_token}"
alive_url = f"http://{host}:{port}{routes_pathname_prefix}_alive_{JupyterDash.alive_token}"

def _get_error():
try:
Expand Down