1) I copied out the demo embed code with that DOI as argument, into a file, and opened the file in a browser. Success!
2) I went to the create-a-collection page at
total-impact.org and tried a URL for a document of ours that I'm told is indexed:
http://hdl.handle.net/1805/2099. Success!
3) I replaced the DOI argument with our Handle reference in the embed document, and opened the file (attached) in a browser. Blank page. Firebug shows an empty <ul class='metrics'> element.
Clearly there is something I'm missing.