I found this error was created by an errant URL in a call to xhrGet. By correcting the URL the error was resolved. In Chrome, the error was better identified in the response showing the errant URL. In my case, I'd embedded an undefined value in the URL request by mistake like this: http://localhost:9080undefinedjson/IssueSummaries
Perhaps because the port number was FUBAR, it causes this error to be reported?
Anyway, this error was a red herring reported back from the xhrGet call to a bad URL.
I found this error was created by an errant URL in a call to xhrGet. By correcting the URL the error was resolved. In Chrome, the error was better identified in the response showing the errant URL. In my case, I'd embedded an undefined value in the URL request by mistake like this: localhost: 9080undefinedjson/ IssueSummaries
http://
Perhaps because the port number was FUBAR, it causes this error to be reported?
Anyway, this error was a red herring reported back from the xhrGet call to a bad URL.
I'm using version 10.0.10 of Firefox.