Routing in embark using react is not working

[SaeedBashar]

"Cannot GET /signup" is appearing on the browser

"Refused to execute inline script because it violates the following Content Security Policy directive: "default-src 'none'". Either the 'unsafe-inline' keyword, a hash ('sha256-kPx0AsF0oz2kKiZ875xSvv693TBHkQ/0SkMJZnnNpnQ='), or a nonce ('nonce-...') is required to enable inline execution. Note also that 'script-src' was not explicitly set, so 'default-src' is used as a fallback." also in the console