can't make http get/post to other altervista site

I have two sites on altervista. One has php files and I want to do a get from the other altervista site, but I get the CORS error.
Added Header add Access-Control-Allow-Origin 'https://geomapper.altervista.org' in the .htaccess file for the php one but it still doesn't work.
Should I add geomapper.altervista.org to the whitelist site with the php files?
Or is the cross site not allowed from one altervista site to another?

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Originally Posted by geomapper

Should I add geomapper.altervista.org to the whitelist site with the php files?

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No, becasue the whitelist is related on the server request, I guess you are making requests via javascript.

You can manage the Access-Control-Allow-Origin from the "header" of PHP (is not supported via .htaccess). Did you used the header() function in PHP before any html output?

Bye!

Thank you - that was very helpful.