The captcha image of the contact form is not shown, depending on the init method of Controller.php.
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operating system: Linux Mint 17
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Web server: Apache
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browser type: Firefox 33
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Yii version: 1.1.x
public function init()
{
// The language is set but the captcha image not shown
Yii::app()->language = $_GET['lang'];
}
public function init()
{
// The language is set to 'es' (Spanish) and the captcha image is shown
Yii::app()->language = 'es';
}
public function init()
{
// An exception is thrown: Undefined index 'abc'
Yii::app()->language = $_GET['abc'];
}