Do you want to request a feature or report a bug?
What is the current behavior?
If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem. Your bug will get fixed much faster if we can run your code and it doesn't have dependencies other than React and react-helmet. Paste the link to your JSFiddle (https://jsfiddle.net/Luktwrdm/) or CodeSandbox (https://codesandbox.io/s/new) example below:
What is the expected behavior?
Which versions of React and react-helmet, and which browser / OS are affected by this issue? Did this work in previous versions of React and/or react-helmet?