Header set Access-Control-Allow-Origin "*"
I'm not willing to allow "*", so I added this:
# Added 21-8-2020 based on https://bitcointalk.org/index.php?topic=5167469.msg55037886#msg55037886
Header set Access-Control-Allow-Origin "https://bitcointalk.org"
# Added 18-12-2020 based on https://bitcointalk.org/index.php?topic=5246271.msg55854208#msg55854208
Header set Access-Control-Allow-Origin "https://bitcoindata.science"
Let me know if it still doesn't work.