perl: correct `content type` formatting for returning `image data uri`

Question

I have a template in angularjs expecting the image data uri returned by a server call invoked through the src attribute of the img

Answer 1

Perl subroutine:

my $photo = '/9j/4gIcSUNDX....oqOU1MzEFUa8x2MJf5JUjFV3llWW3UVscTLNhd93KFWQUrqHn/ABEc2CfmIASx0nMWLiN5f2hqE//Z';
my $decoded= MIME::Base64::decode_base64($photo);
content_type 'image/jpeg';
$decoded;