I noticed that image source that points to the domain url looks like this:
<img class="alignleft wp-image-310" src="https://cache.air-n-water.com/resources/wp-content/uploads/2016/01/Trees-768x512-2-1.png" alt="Multiple Trees" width="550" height="367" srcset="https://cache.air-n-water.com/resources/wp-content/uploads/2016/01/Trees-768x512-2-1-300x200.png 300w, https://www.air-n-water.com/resources/wp-content/uploads/2016/01/Trees-768x512-2-1.png 768w" sizes="(max-width: 550px) 100vw, 550px">
But if I strip the extra image attributes like what’s below, the image displays with the cdn version.
<img class="alignleft wp-image-310" src="https://cache.air-n-water.com/resources/wp-content/uploads/2016/01/Trees-768x512-2-1.png" alt="Multiple Trees" width="550" height="367" />
How can I prevent all of these attributes from showing up if they’re the ones preventing the cached image version to be used?