Cannot initialize the data source object of OLE DB provider “MSDASQL” for linked server

Question

I am familiar with this post on the matter.

I have the same situation as described in this post, however the accepted answer is not solving my problem.

SPECIFICS

From my Microsoft SQL Server 2012 console, logged in as Administrator (with domain credentials), I can successfully run this command:

select * from openquery(MyLinkedServer, 'select * from my_linked_server_table')

I can run it wrapped in a stored procedure as well.

exec runMyLinkedServerCommand 1234

I have Node.js running as my web server, and connect up with TDS drivers. I pass a SQL Server account as the credentials to Node.js, not a Windows account.

I try to run the stored procedure through Node.js using an XHR request from my browser, and I get the above mentioned error:

Cannot initialize the data source object 
of OLE DB provider “MSDASQL” for linked server ("myLinkedServer")

The above mentioned main post on this topic states to enable access to the Temp Directory on the windows account running SQL Server. I did this, but this doesn't change anything. I don't know if running Node.js has any bearing in any of this, or what else to try.

I have successfully run the query from SQL Server Management Studio under the same SQL credentials that my Node.js TDS module is using.

I am at a loss at what else to try.