default_mode is no longer accepted

What changed

Usually ignored rather than rejected, so the call succeeds and does something subtly different.

Affects default_mode on precursor_precursor_config reachable from 2 operations. Grep for it: nothing else will tell you.

Who is affected

Code that sends Cloudflare's precursor_precursor_config objects, used by 2 Cloudflare operations.

Before and after

Code that breaks

await client.post("/…", {
  // default_mode is now ignored, not rejected
  default_mode: value,
});

Based on Cloudflare’s published API specification. How severity is decided.