Earlier, I said a couple of times that shared workers will be available only to those parent files which share the same origin. What does that mean?
Let us consider the URL http://www.packtpub.com/all.
Here's a table demonstrating which URLs will be of the same origin with this domain, and which won't be:
| New URL | Same Origin | Reason |
| http://www.packtpub.com/support | Yes | - |
| http://www.packtpub.com/account/abc/xyz | Yes | - |
| https://www.packtpub.com/all | No | Different protocol |
| http://username:password@www.packtpub.com/all | Yes | - |
| http://www.packtpub.com:8000/somepage | No | Different port number |
| http://packtpub.com/somepage | No | Different host |
| http://dev.packtpub.com/somepage | No |
Different host |
By now, I believe that ...
