Go back to dev tools and see the scope window (below source for me).
Set a breakpoint on the line above which is a switch statement.
Search for case r.a.TOGGLE: (should be around line 25845).
Click braces at bottom of the sources window to format the code.
In network hierarchy on left, open photos, applications/photos, 1807Hotfix1/en-us, main.js.
Click Sources tab at the top of dev tools.
Right click any photo on the page and select Inspect.
Go to photos in iCloud, then All Photos.
The following steps are involved, and I would appreciate if someone can tell me how to get the "this" value for the object I need in a simpler fashion (steps 4-10). I am sure you can do it with other browsers, I just haven't tried. It will download them all separately as if you had selected all of the photos by hand (but without RSI). It will force the underlying structure to select all of the photos on the page and allow you to click the download selected photos button. I was able to figure out a workaround for this. What’s the most efficient way to download images from iCloud Photo Library to a Mac that can’t connect to iCloud Photo Library without upgrading to a paid plan? I could click on all 800 images while holding the ⌘ cmd key, but that’s obviously very tedious. Selecting the first image, holding down the ⇧ shift key, then selecting the last image causes only the last image to be selected. I was able to select and download individual images, but it won’t let me select more than one at a time, so I can’t download them all in bulk. So I don't think using the Photos app is going to work for offloading pictures to a Mac. I tried to connect my Mac to iCloud Photo Library by going into the Photos app’s preferences however it then asks me to upgrade to a paid iCloud storage tier because I have over 5GB worth of local images that Photos wants to sync to iCloud. I’m trying to move them to a Mac and delete them from iCloud in order to clear up space. I have an iCloud account with about 800 photos stored in iCloud Photo Library.