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+1. I was having this sort of issue setting up an Android tablet as a wifi CNC pendant. The controller is based on an ESP32 (which has limited storage for a fu
by thebeardisred 4y ago
+1. I was having this sort of issue setting up an Android tablet as a wifi CNC pendant. The controller is based on an ESP32 (which has limited storage for a full cert chain) and I run it without a gateway address on it's own VLAN. I'm certain it's "secure enough".
Turns out Android + Firefox mobile keeps trying to turn "http" to "https" and at the same time specifying the IP + port explicitly in the URL is considered malicious by Firefox.
"This address uses a network port which is normally used for purposes other than Web browsing. Firefox has canceled the request for your protection."
I had to run a development version of Firefox just to be able to get to "about:config" to disable the behavior.
- tialaramex 4y agoBut why pick a port that's never traditionally used for HTTP ? Firefox isn't just assuming all ports are prohibited, it has a relatively short list of ports where we know it's crazy to pick HTTP on those ports and sometimes people do it to exploit protocol parsing issues, so it forbids that.