Zend certified PHP/Magento developer

Captive portal using python server

im trying to make python script for captive portal access point.
On android devices when we connect AP, in few seconds we have pop-up window to open captive portal website.

Im using hostapd, dnsmasq, and python web server. Below configs & python server

hostapd.conf:

driver=nl80211
interface=wlan1
ssid=TestAP
channel=1

dnsmasq.conf:

interface=wlan1
dhcp-range=10.0.0.10,10.0.0.100,8h
dhcp-option=3,10.0.0.1
dhcp-option=6,10.0.0.1
address=/#/10.0.0.1

iptables:

echo 1 > /proc/sys/net/ipv4/ip_forward
iptables –flush
iptables –table nat –flush
iptables –delete-chain
iptables –table nat –delete-chain
iptables -P FORWARD ACCEPT

interface configuration:

ifconfig wlan1 10.0.0.1 netmask 255.255.255.0

python server is starting on custom ip and port like 10.0.0.1, port 80

I can manually open webiste on connected phone, but i want a pop-up window on my device