Https / Certificate not trusted on mobile devices: Nexus 4 & Galaxy S4

StackOverflow https://stackoverflow.com/questions/23113542

  •  04-07-2023
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Question

On the computer everything works fine but on mobile I got the following error:

Security

I use HTTS through Google App Engine

Let me know if you need more info

Was it helpful?

Solution

On some devices PositiveSSL CA2 is not trusted. But this CA is signed by AddTrustExternalCARoot which should by trusted on all Android devices.

Therefore you can add the intermediate certificate (PositiveSSL CA2) to avoid the error message.

One way to do this is:

Download PositiveSSL_CA2.crt

cat your_domain.crt PositiveSSL_CA2.crt > new.crt

Use new.crt with GAE as usual.

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