修复二步验证二维码错误

application/index/model/TwoFactor.php

@@ -22,7 +22,7 @@ class TwoFactor extends Model{
 		ob_end_clean();
 		$this->secretKey = $this->ga->createSecret();
 		session("two_factor_enable",$this->secretKey);
-                $qrCode = new QrCode(urldecode($this->ga->getQRCodeGoogleUrl(Option::getValue("siteName"), $this->secretKey)));
+		$qrCode = new QrCode(urldecode(str_replace("https://chart.googleapis.com/chart?chs=200x200&chld=M|0&cht=qr&chl=","",$this->ga->getQRCodeGoogleUrl(Option::getValue("siteName"), $this->secretKey))));
 		$qrCode->setSize(165);
 		$qrCode->setMargin(0);
 		header('Content-Type: '.$qrCode->getContentType());