got parameter parse error

My application 
fronend: Angular8
backend: Ruby on Rails5

I updated ng2-image-upload rc1 to rc2, I got that rails errors.

```
Error occurred while parsing request parameters.
Contents:

------WebKitFormBoundarymvPV3id1plZ7AB0o
Content-Disposition: form-data; name="image"; filename="kuzugr.jpg"
Content-Type: image/jpeg

����JFIFH
```


Does anyone have a solution?