styled-jsx server side work with 9.3.1 but not with 9.3

[valse]

Hi, after dealing with the #10148 error using css modules with a global style, we moved trying styled-jsx (with sass).

I noticed that in production mode using the 9.3 version the style tag rendered in the head missing, applying the style only after rehydrate the page with a terrible initial effect... upgrading to 9.3.1 all start working fine but I can't understand why 🤔