Creating a repl redirects to `[Object%20object]`

[pythoncat1]

Describe the bug When you create a new repl, instead of redirecting to the repl url, it redirects to /[Object%20object]. To Reproduce Steps to reproduce the behavior:

1. Enable all flags
2. Click on Create Repl
3. Choose any language
4. Click create button
5. Redirects to /[Object%20object] instead of repl link, however the repl is still created.

Expected behavior Creating a repl should redirect to the repl link.

[lafkpages]

Enable all flags

Do you know specifically which ones cause this? I have reason to believe it may be the "Force SSR" setting. Can you try enabling only that one?

[pythoncat1]

I tested each individual flag, none of them causes this. It is likely a combination.

[lafkpages]

Can repro. Not all settings are required, as I thought, it's the "Force SSR" setting.