mb_strlen wrong defines length

[slowprog]

Hello,

_mbstrlen wrong defines the length of my pic when rendered temporary image (rote _thrace_media_image_rendertemporary). It looks like this:

But if change call of _mbstrlen and add 8bit:

// Thrace\MediaBundle\Controller\ImageController.php
...
$response->headers->set('Accept-Ranges', 'bytes');
$response->headers->set('Content-Length', mb_strlen($content, '8bit'));
$response->headers->set('Content-Type', $this->getMimeType($content));
...

then it will be fine:

[zender]

thanks. I will fix that.