finwe/mpdf — pull request #24 by bzis (2014-08-25 16:14:55+00:00)
Title: bugfix: "Only variables should be passed by reference"

at this place
```php
$this->restoreInlineProperties(array_pop($this->InlineProperties[$tag]));
```
I have an exception: "Only variables should be passed by reference" (at least PHP 5.5.15)