Image not loading in custom portal plugin (.svg)

[herbally]

What is your plugin?

custom_portals.sh

What is your plugin version?

0.2.1

What is your airgeddon version?

11.30

What is the expected behavior?

Included a logo image in .svg format on my custom portal which I expected to load like a normal webpage.

Describe the issue and the steps to reproduce it

I tried using an svg image which would not work so I tried the png image from the openWRT example and both result in a broken image icon when I access the portal from remote device.