Using chess.js in Quasar/Vue app has issues with _positionCounts when used in pinia store

[NeverNerfLabsAdmin]

I didn't see this problem until I moved chess.js into a pinia store but that seemed to change how _positionCounts was running. I started getting this error:
TypeError: fen.split is not a function
at trimFen (chess.ts:535:14)
at Object.get (chess.ts:585:22)
at Proxy.toString ()
at toTypeString (shared.esm-bundler.js:40:48)
at toRawType (shared.esm-bundler.js:42:10)
at getTargetType (reactivity.esm-bundler.js:862:93)
at createReactiveObject (reactivity.esm-bundler.js:917:22)
at reactive (reactivity.esm-bundler.js:868:10)
at MutableReactiveHandler.get (reactivity.esm-bundler.js:464:44)
at Proxy.load (chess.ts:661:10)

The issue is here:
this._positionCounts = new Proxy({} as Record<string, number>, {
get: (target, position: string) =>
position === 'length'
? Object.keys(target).length // length for unit testing
: target?.[trimFen(position)] || 0,

When I add a console.log(position) I get the following:
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
chess.ts:590 __v_isReadonly
chess.ts:590 __v_isShallow
chess.ts:590 __v_isReadonly
chess.ts:590 __v_raw
chess.ts:590 __v_raw
chess.ts:590 __v_isRef
chess.ts:590 __v_isRef
chess.ts:590 __v_isReadonly
chess.ts:590 __v_raw
chess.ts:590 __v_skip
chess.ts:590 Symbol(Symbol.toStringTag)

It's the last one that causes trimFen(position) to throw the TypeError: fen.split is not a function

For now I have this quick and dirty fix:
get: (target, position: string) => {
console.log(typeof position);
if (typeof position === 'symbol') {
return void 0;
}

But TBH I don't fully understand the problem or cause.

[jhlywa]

Thanks for the report @NeverNerfLabsAdmin. I'll take a shot at rewriting the position count without the use of a proxy.

[jhlywa]

I removed the proxy from 1.0.0-beta.8. It's been published to NPM. Let me know if that fixes things for you.