Status 500 when trying to put more precise order.

When putting order on HyperDex for example 3.77 Morty to KMD it hits status code 500(Internal server error) with message in the developer tools -> "Access to fetch at 'http://127.0.0.1:49933/' from origin 'app://-' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled."
I can put an order of 3 (Integer number), also can put an order of 3.7, but with more precise numbers like 3.77 and 3.777 it gets the error.

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HyperDEX Nightly 0.0.0-c2d7531-19.7.24.1745
Electron 5.0.8
win32 10.0.10586
Locale: en-US