[Smush Pro] Facebook Tracking image removed by lazyloading

I’ve added the default Facebook Tracking code to my website and noticed, that Smush replaced the tracking pixel with the lazy-load placeholder…

It’s not a big deal, because I can simply add a css class and exlucde it in the Smush Settings, but I think this is an issue that can be easily handled by smush itself.

That’s the default HTML code facebook provides:
< img height="1" width="1" src="https://www.facebook.com/tr?id=1234567890&ev=PageView&noscript=1" />
(full details here: https://developers.facebook.com/docs/facebook-pixel/advanced#installing-the-pixel-using-an-img-tag)

Does Smush recognize tracking images?
Maybe we could have an option to “Disable lazyloading for external images”, or even better: Add a blacklist to Smush with the most common tracking pixel URLs.