Clarification on URL.host setter's behavior

[tyoshino]

Raised at https://code.google.com/p/chromium/issues/detail?id=551901

It's confusing that the host getter gives us:

• "host:port" (for non-default port)
• "host" (for default port)

while the host setter handles input without port as a host-only modification operation.

The spec should include some notes to prevent misuse.

For the host setter, for example ... hard to phrase correctly ...:

---

Note: Unlike the host getter, a value without a port does not mean implication of the default port. I.e. the host setter does nothing on url's port if the given value does not contain a port.

---

[annevk]

Thank you!

[tyoshino]

Looks good! Thanks