Rewrite based on domain

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Does it's possible to provide a route condition that we could determine rewrite rule by the domain name?
Such as:
```
"routes": [
{
"domain": "a.com",
"route": "/",
"rewrite": "/a"
},
{
"domain": "b.com",
"route": "/",
"rewrite": "/b"
}
]
```
Some times we provide different domain for same source code, and we want provide different domain for different platform. And rewrite it to different path but share with same repo.