Variable: E_ISOLATE_FUNCTION_ARG_UNSUPPORTED

const E_ISOLATE_FUNCTION_ARG_UNSUPPORTED: CreatedException<[string]>;

Defined in: src/batteries/isolation/isolate_function.ts:103

Thrown when an invoke() argument contains an exotic leaf (a function/Error/custom-encodable) that codec.ts's tiered encoder would need to escalate past the 'raw' tier. The isolated Blob guest has no module imports (by design — no bare specifiers survive a Blob URL) and therefore cannot load @nhtio/encoder to decode an enc: 'nhtio' value; isolateFunction only ever supports plain, structured-cloneable arguments. Non-fatal: a caller can pass different, plain arguments instead.