quic and dirty fix

client/tools.ts

@@ -9,7 +9,15 @@ export function uint_bytes_to_num(value: Uint8Array): number {
 
 export function utf8_encode(value: string): Uint8Array {
 	const encoder = new TextEncoder();
-	return encoder.encode(value);
+	let res: Uint8Array = new Uint8Array(0);
+	for (const ch of value) {
+		const cur = encoder.encode(ch)[0];
+		const prev = res;
+		res = new Uint8Array(prev.length + 1);
+		res.set(prev, 0);
+		res.set([cur], prev.length);
+	}
+	return res;
 }
 
 export function utf8_decode(value: Uint8Array): string {