Regression : logo loaded multiple times by jQuery

Hello,

There is a very strange new issue happening on Canvas demo page and on my own project as well.

To see it, open network tab under Chrome devTools panel and go to the url :
http://test.wedding-table-plan.com/
(login : canvas / pass : canvas)

When the page is completely loaded, start scrolling. There you can see that a request to load the logo is launched by jquery at each scroll (see attachment).
It's strange because I didn't make any changes on this and the problem was not there 2 days ago.

Beside, on Canvas demo page, the same problem can be reproduced but using a different way :
0. Open F12 network tab on Chrome devTools

1. Go to the Canvas demo : http://themes.semicolonweb.com/html/canvas/
2. Wait for the page to be fully loaded
3. Scroll until the middle of the page
4. Wait a few seconds and scroll back to the top of the page
5. Wait a few seconds and repeat steps 3, 4 and 5

=> Here you can see that the logos files are reloaded as well every times.

I have attached a screenshot of the network tabs for both examples.

Do you have any idea on what cause that behavior and how to avoid it ?
Thanks a lot.