I've got a problem by using the Blogger API in PHP. When I publish an article with a picture on Blogger by using API, the picture appeared correctly on desktop version of my blog but no on mobile.
For example:
I send the following article on Blogger
<p><img src="https://cdn.pixabay.com/photo/2018/10/03/21/13/mushroom-3722395_960_720.jpg" /></p><p>Test</p>
On the index of my Blogger on Desktop, the pictures are correctly displayed:
I open the same page on mobile, and all pictures have disappeared:
I noticed that URL generated by Blogger are differents on mobile and desktop.
By inspecting element, the URL on mobile is exactly the same that I've sent thanks to the API (ie: https://cdn.pixabay.com/photo/2018/10/03/21/13/mushroom-3722395_960_720.jpg).
On desktop, the URL is totally different:
https://lh4.googleusercontent.com/proxy/...
If I edit the post directly on Blogger and if I replace the original URL (https://cdn.pixabay.com/photo/2018/10/03/21/13/mushroom-3722395_960_720.jpg) by the URL generated (https://lh4.googleusercontent.com/proxy/...), the picture appeared correctly on mobile!
Have you got an explanation? How I can display pictures on mobile by using this API?