I have created a sub store in magento2, but on subdomain I'm getting below error in console.
Uncaught DOMException: Failed to read the 'contentDocument' property from 'HTMLIFrameElement': Blocked a frame with origin "https://sub.domain.com" from accessing a cross-origin frame. at contents (https://domain.com/pub/static/version1525152785/frontend/Package/theme/en_US/jquery.js:3123:9)
Cross origin error coming for all js files.
For this I tried to change pub/static/.htaccess file to add
Header always set Access-Control-Allow-Origin "*" but after this I'm getitng error
Access-Control-Allow-Origin has multiple value '*, *
How to fix this issue?