Generate SVG Image using svg raw data in imagick php

I am trying to create svg image using svg raw data which i am getting from fabric js. I have used below code to generate the svg using svg raw data but its not working properly.

public function generate_svg($raw_svg='',$prefix='',$folder_name='card_image')
{
    $file_name = '';       
    if($raw_svg!='')
    {
        try{           
            $file_name = uniqid($prefix).".svg";
            $image = new \Imagick();
            $image->readImageBlob($raw_svg);
            $image->setImageFormat("svg");
            $image->writeImage($folder_name.$file_name);
        } catch (ImagickException $ex) {
            echo $ex->getMessage();
        }
    }
     return $file_name;
}

Now the issue is background image is kind of Look like below:

So what should i do to fix that?

It should look like below (ignore the square and round), the issue is whole background looks like black instead of bg image.:

So the issue is background image is not loading, so do i have to add additional library to do that or any thing else?

Imagick Version: 6.7.7

    convert -list delegate | grep svg  

    cdr =>          "uniconvertor' '%i' '%o.svg'; /bin/mv '%o.svg' '%o"
    cgm =>          "uniconvertor' '%i' '%o.svg'; /bin/mv '%o.svg' '%o"
    dot =>          "dot' -Tsvg '%i' -o '%o"
    dxf =>          "uniconvertor' '%i' '%o.svg'; /bin/mv '%o.svg' '%o"
    fig =>          "uniconvertor' '%i' '%o.svg'; /bin/mv '%o.svg' '%o"
    svg =>          "rsvg-convert' -o '%o' '%i"

 convert -list format | grep SVG

 MSVG  rw+   ImageMagick's own SVG internal renderer
  SVG  rw+   Scalable Vector Graphics (XML 2.9.1)
 SVGZ  rw+   Compressed Scalable Vector Graphics (XML 2.9.1)