[Python] This HTTP server I written mostly works, but has an issue with mobile Chrome

This web server runs fine for simple web-serving tasks, but it gives me a "broken pipe" error when sending large files to devices with mobile Chrome specifically. The only thing different with mobile Chrome is that it does not send a "Keep-alive" in the header.

I did not try anything. I expected to get a successful connection just like any other browser.

My code


with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
s.bind(('0.0.0.0', 80))
s.listen()
while True:
conn, addr = s.accept()
with conn:
req = conn.recv(1024).decode("utf-8")
print(req)
req = req.split(" ")
if(req[0] == "GET"):
try:
fname = req[1]
if(fname == "/"):
fname = "index.html"
else:
fname = os.path.relpath(os.path.abspath("." + fname))
with open(fname, "rb") as f:
mtype = mimetypes.guess_type(fname)[0]
conn.sendall(f"HTTP/1.1 200 OK\nContent-Type: {mtype}\n\n".encode('utf-8') + f.read())
except:
conn.sendall(b"HTTP/1.1 404 Not Found")
else:
print("LOL No!")
conn.sendall(b"HTTP/1.1 400 Bad Request\n\n")

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