401 Unauthorized and 403 Forbidden: Which One You Have, and Why It Matters
A 401 and a 403 both mean you did not get the page, and they are constantly swapped for each other, in error messa...
Read moreTips and notes on reporting better bugs
A 401 and a 403 both mean you did not get the page, and they are constantly swapped for each other, in error messa...
Read moreA 502 Bad Gateway is one server telling you that another server, the one it was relying on, answered with somethin...
Read moreA little after midnight on 27 August 2026, the temperature in Proton’s main datacenter room in Frankfurt rose from...
Read moreSomebody told you to “open the Network tab and see if any requests are failing,” and now you are looking at a pane...
Read moreThe message reads something like this, and the important half is the end of it: Access to fetch at 'https://api.e...
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