Your LimeSurvey version: LimeSurvey Community Edition Version 5.1.10+210913
Own server or LimeSurvey hosting: Own server.
Survey theme/template: Fruity
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Hi Hello
What is the default configuration for "Set Access-Control-Allow-Origin" header under "Global settings" > "Interfaces"? Should It normally be on or off?

The default setting is On.

A bit more about the topic can be found here. Not specific to LimeSurvey.
web.dev/cross-origin-resource-sharing/

Thank you very much. I look in the documentation and some other settings have their default status but I couldn't find it for this.

So it's kind of an independent setting even thougt RPC interface is disabled?

Thanks for that resource. It covers the topic from the very basics and it is what i needed

ventolinmono wrote:

So it's kind of an independent setting even thougt RPC interface is disabled?
 

In LimeSurvey the setting is only relevant when using RPC.
If the setting is switched on, the header "Access-Control-Allow-Origin: *" will be set in RPC responses.