Crawling Images on CDN

[biuro16]

Hello,
I have a problem with crawling images on my CDN. Nothing was crawled.
HTML code for this look like that:
<img src="data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=" data-src="CDN ADRESS_WITH_HEADER_CANONICAL_BACK_TO_MY_SERVER.jpg" alt="..../>

In code is used too lazyload script, when we have src with 1 pixel empty blank image, and true image on data-src hosted on CDN.
How to change setting to crawl this images??

Best regards

[XML-Sitemaps Support]

Hello,

please reorder the src and data-src attributes:
<img data-src="CDN ADRESS_WITH_HEADER_CANONICAL_BACK_TO_MY_SERVER.jpg"  src="data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=" alt="..../>