[OJS 3] bug? wizard journal

Hello. I installed the latest OJS 3.

I created a journal.

I completed wizard.

At the finish i see a json instead of web???

error.log blank.

url https://ZZZZZZZ.com/index.php/ZZZZZ/$$$call$$$/tab/settings/distribution-settings-tab/save-form-data?tab=indexing

Screenshot_2019-01-15%20https%20nailos%20acentoweb%20com

Sorry, it’s not a bug. Problem = OJS + pagespeed