The problem

When viewing a device that uses the MQTT integration, there is a visit button to load the local MQTT web page.
That link has a typo.

Double / after port number, before the #
prevents webpage from showing devices.
removing the extra / from address bar loads page correctly

What version of Home Assistant Core has the issue?

2025.8.0

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Container

Integration causing the issue

MQTT

Link to integration documentation on our website

No response

Diagnostics information

No response

Example YAML snippet

Anything in the logs that might be useful for us?

Additional information

No response