The Guardian Videos channel in Totem is broken due to issues in how Grilo handles the Guardian API. Videos and searches fail to load for me.

I am on Arch Linux x86_64, running GNOME 3.16 and Grilo 0.2.12-1 and Grilo-Plugins 0.2.14-4.

Steps to reproduce:
1. Open Totem and navigate to the channels tab.
2. Click on The Guardian Videos button.

What happens:
The video list is completely blank. The following error is spat into the terminal:

(totem:10888): Grilo-WARNING **: [lua-library] grl-lua-library.c:366: Can't fetch element 1 (URL: http://content.guardianapis.com/search?tag=type/video&page=1.0&page-size=50.0&show-fields=all&api-key=rppwmmu3mfqj6gkbs8kcjg23): 'Invalid request URI or header: Bad Request'

Expected results:
The window should populate with video thumbnails.

Possible fix:
I tried pasting the URL in the error message into a browser, and I received:

{"response":{"status":"error","message":"page must be numeric"}}

After changing the values of "page" and "page-size" from decimal to integer values, the URL loads as expected. See below for the fixed URL:

http://content.guardianapis.com/search?tag=type/video&page=1&page-size=50&show-fields=all&api-key=rppwmmu3mfqj6gkbs8kcjg23