clicking anchor with href="#id" resulting in error

[vinaypuppal]

• I was using data-fetch example and added the Router events functionality from with-loading example.
• I have these lines of code

<Link href='#about'><a style={linkStyle}>About</a></Link>
<a href="#contact" style={linkStyle}>Contact</a>

• Clicking on About link is not going to About section on the page (as mentioned in Link component doesn't support relative path #573)
• But clicking on Contact anchor link is going to Contact section but also resulting in below error

commons.js:3 Uncaught (in promise) TypeError: Cannot read property 'url' of null
    at e.<anonymous> (https://data-fetch-qcpytnbuvq.now.sh/_next/commons.js:3:1274)
    at o (https://data-fetch-qcpytnbuvq.now.sh/_next/commons.js:5:11983)
    at Generator._invoke (https://data-fetch-qcpytnbuvq.now.sh/_next/commons.js:5:13392)
    at Generator.t.(anonymous function) [as next] (https://data-fetch-qcpytnbuvq.now.sh/_next/commons.js:5:12162)
    at r (https://data-fetch-qcpytnbuvq.now.sh/_next/commons.js:1:17923)
    at https://data-fetch-qcpytnbuvq.now.sh/_next/commons.js:1:18072
    at e (https://data-fetch-qcpytnbuvq.now.sh/_next/commons.js:1:5415)
    at e.<anonymous> (https://data-fetch-qcpytnbuvq.now.sh/_next/commons.js:1:17865)
    at e.t (https://data-fetch-qcpytnbuvq.now.sh/_next/commons.js:3:1065)

• Demo: https://data-fetch-qcpytnbuvq.now.sh/

• Source Code: https://data-fetch-qcpytnbuvq.now.sh/_src/?f=components%2FHeader.js&h=745%3B111

• using version "2.0.0-beta.11"