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Getting this error message when trying to sharing an image by downloading it via the menu on

Did Not Connect: Potential Security Issue

Firefox detected a potential security threat and did not continue to because this web site requires a secure connection. has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

Edit: steps shown: any location --> press share button --> select format: any --> select scale: any --> press download --> ERROR!

alt text

asked 24 Mar '20, 10:52

Ash_PH's gravatar image

accept rate: 0%

edited 25 Mar '20, 12:57

SimonPoole's gravatar image

SimonPoole ♦

Can you describe what URLs you were connected to and then what buttons you pressed on what order, so that people can reproduce it?

Edit: Thanks for the update. The relevant certificate has what looks like a valid alt name on it (, but it's self-signed (issued by "OpenStreetMap"), not by a 3rd-party trusted issuer.

(24 Mar '20, 11:38) SomeoneElse ♦

According to the admins on IRC "should be fixed now".

permanent link

answered 24 Mar '20, 12:58

SomeoneElse's gravatar image

SomeoneElse ♦
accept rate: 16%

The security error is fixed but I'm now getting a new error either saying Map too large, or a 504 error: Gateway Timeout The gateway did not receive a timely response from the upstream server or application. Apache/2.4.29 (Ubuntu) Server at Port 443

(24 Mar '20, 13:26) Ash_PH

At a guess, your new eror is likely just due to the servers being busy. If that is the case I'd suggest one of the usual workarounds such as "screenshot a browser and edit the result".

(24 Mar '20, 13:35) SomeoneElse ♦

It works well for me now, with the scale as yours. You should try again.

(24 Mar '20, 15:51) H_mlet

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question asked: 24 Mar '20, 10:52

question was seen: 1,715 times

last updated: 25 Mar '20, 12:57

NOTICE: is no longer in use from 1st March 2024. Please use the OpenStreetMap Community Forum