[Python] Firebase Cloud Function Not Returning Response (Even After Successful Data Extraction)

Problem: I am building a Firebase Cloud Function in Python to extract text and links from a PDF file hosted at a URL. The function works correctly in extracting the data (I can see it printed in the logs), but when I return the response, the function doesn't return the expected result. The function seems to process the PDF correctly, but the response isn't being returned as expected.

Here's my code

from firebase_functions import https_fn
from firebase_admin import initialize_app

import requests
import fitz # PyMuPDF
from io import BytesIO

from firebase_functions import https_fn, options
import flask

initialize_app()
app = flask.Flask(__name__)

@app.post("/extract")
def extract():
"""
Extracts text from a PDF file and returns it as a JSON response.
"""
# Get the request data
request_data = flask.request.get_json()

# Check if the request data is valid
if not request_data or 'url' not in request_data:
return flask.jsonify({'error': 'Invalid request data'}), 400

# Get the URL of the PDF file
pdf_url = request_data['url']

# Download the PDF file
response = requests.get(pdf_url)
pdf_bytes = response.content
doc = fitz.open(stream=pdf_bytes, filetype="pdf")
text = ""
links = []
for page in doc:
text = page.get_text()
print(text)

links = page.get_links()
for link in links:
if link.get('uri'):
links.append(link['uri'])
print(link)
response_data = {
'text': text,
'links': links
}
print(response_data)
# Return the extracted text as a JSON response_data
return flask.jsonify(response_data), 200


@app.route('/__/health', methods=['GET'])
def health_check():
return "OK", 200

@https_fn.on_request()
def extractor(req: https_fn.Request) -> https_fn.Response:
with app.request_context(req.environ):
return app.full_dispatch_request()


this is a screenshot

print the results then postman keep loading until timeout reached

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