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JamesHaworthOncamJamesHaworthOncam 

SSL Certificate: Is an intermediate certificate always needed?

We recently purchased an SSL certificate for a custom domain. When we received it, the provider said we needed to also install an Intermediate Certificate.

There is an article called 'Merge a complete certificate chain for custom HTTPS domains (https://help.salesforce.com/articleView?id=000204513&language=en_US&type=1)' that explains how to load intermediate certificates, but we've had some issues with this.

The article says "Some systems or browsers don't have trusted intermediate certificates. To resolve this, those certificates need to be installed and trusted."

My question is, given that the article says "some systems or browsers", does this mean in most cases, the intermediate certificate wouldn't be necessary (e.g. for newer browsers)?

Given the issues we're having loading the intermediate cert, I want to know if we can get away with not loading it.