"Cross Domain IndexedDB"가능 여부

Question

xxx.com yyy.com의 indexeddb에 액세스하는 방법.
이 두 도메인에는 동일한 스크립트 이 포함될 수 있습니다.

Iframe 기술로 가능합니까?

Answer 1

You can do it with iframe technique (loading iframe with same domain in different domains) 

example: 
myStorageIframe.com 
a.com 
b.com 
c.com 

you can add the iframe to each domain, and store/get items with post-message. 
each domain will communicate with the frame, and by this the storage will be shared between all domains. 

The pitfalls of this is that in Safari it will make a lot of problems, since their security policy is very strict with cross-domain & third-party storages. 

([우리가 IndexdDB는 두 페이지를 저장 개체를 사용할 수]의