Updated FIDDLE
For jsPlumb.makeSource()
the attribute name is connectorOverlays
(SOURCE). Here is sample code:
jsPlumb.makeSource("someDiv", {
...
endpoint:{
connectorOverlays:[
[ "Arrow", { width:10, length:30, location:1, id:"arrow" } ],
[ "Label", { label:"foo", id:"label" } ]
]
}
...
});
OR, You can set it in defaults as:
jsPlumb.Defaults.Overlays = [
[ "Arrow", {
location:1,
id:"arrow",
length:14,
foldback:0.8
} ]
];