User:Robertinventor/test inlined image

This one worked before:

https://www.science20.com/files/images/telerobotics-composite.jpg

Just displays blank:

https://www.science20.com/files/images/telerobotics-composite.jpg

These also don't work:

http://robertinventor.com/booklets/Doomsday_Debunked/600px-cover.jpg

http://robertinventor.com/booklets/Doomsday_Debunked/600px-cover.jpg

https://www.science20.com/sites/all/modules/profiles/user-images/banner/20616.jpg

https://www.science20.com/sites/all/modules/profiles/user-images/banner/20616.jpg

[displays blank]

https://www.science20.com/sites/all/modules/profiles/user-images/avatar/20616.jpg

https://www.science20.com/sites/all/modules/profiles/user-images/avatar/20616.jpg

[displays blank]