ZeroHello can be updated, why other sites can't be updated (showing 5 nodes)

### Step 1: Please describe your environment

* ZeroNet version: 0.7.1
* Operating system: Win10 1909
* Web browser: Firefox 70
* Tor status: not available
* Opened port: no
* Special configuration: _/

### Step 2: Describe the problem:
Trackers has turned on the proxy, how can I still not update the node?

#### Steps to reproduce:

1. _____
2. _____
3. _____

#### Observed Results:

* What happened? This could be a screenshot, a description, log output (you can send log/debug.log file to hello@zeronet.io if necessary), etc.

#### Expected Results:

* What did you expect to happen?