Add test ensuring basePath is added to routes-manifest (#9885)
Add test ensuring basePath is added to routes-manifest (#9885)


zeit/next.js,zeit/next.js,azukaru/next.js,flybayer/next.js,flybayer/next.js,zeit/next.js,JeromeFitz/next.js,flybayer/next.js,JeromeFitz/next.js,azukaru/next.js,JeromeFitz/next.js,azukaru/next.js,azukaru/next.js,JeromeFitz/next.js,flybayer/next.js