External link to subgroup of domain

I am trying to repackage individual groups (of nexus entries) stored under separate domains into one hdf5 file. I have already created an external database of searchable metadata from within the individual scans, and want to be able to download (using the exporth5.py or a modifed version) the contents of this temporary domain (which is just a series of links of similiar scans from across the h5server database) . To this end I started by creating a temporary domain, temp.sgm.clsi.ca, and started adding external links to the desired groups. It turns out that the generated external link e.g.
`links": [
{
"target": "http://localhost:5000/#h5path(/entry1)?host=Cu_mesh_scan.zarthur.sgm.clsi.ca",
"h5path": "/entry1",
"title": "entry1",
"h5domain": "Cu_mesh_scan.zarthur.sgm.clsi.ca",
"href": "http://localhost:5000/groups/8ad1657e-0e78-11e7-b869-080027f91ab0/links/entry1?host=temp.sgm.clsi.ca",
"class": "H5L_TYPE_EXTERNAL"
}
]`
.. doesn't actually refer to anything and is redirected to the base uri for the h5serv. In fact, even the root of the domain isn't accessible using this href construct. I created the external link using the python requests library:
>>> payload
{'h5domain': 'Cu_mesh_scan.zarthur.sgm.clsi.ca', 'h5path': '/entry1'}
>>> string
'http://localhost:5000/groups/8ad1657e-0e78-11e7-b869-080027f91ab0/links/entry1'
>>> rsg = requests.put(string, data = json.dumps(payload), headers={'host':'temp.sgm.clsi.ca'})

Additionaly, no matter how I construct the GET request using h5path and h5domain parameters I can't seem to get the desired response from getUUIDByPath coming out of hdf5db either. In summary, it seems like the external linking is not functioning the way one would hope, and I am unsure of how best to remedy or work around this problem.