atpw25
diff --git a/‎build/litegraph.js
+3-3 b/‎build/litegraph.js
+3-3
@@ -192,9 +192,9 @@
 			//used to know which nodes create when dragging files to the canvas
             if (base_class.supported_extensions) {
                 for (var i in base_class.supported_extensions) {
-                    this.node_types_by_file_extension[
-                        base_class.supported_extensions[i].toLowerCase()
-                    ] = base_class;
+					var ext = base_class.supported_extensions[i];
+					if(ext && ext.constructor === String)
+	                    this.node_types_by_file_extension[ ext.toLowerCase() ] = base_class;
                 }
             }
         },
Original file line number	Diff line number	Diff line change
`@@ -192,9 +192,9 @@`
`192`	`192`	`//used to know which nodes create when dragging files to the canvas`
`193`	`193`	`if (base_class.supported_extensions) {`
`194`	`194`	`for (var i in base_class.supported_extensions) {`
`195`		`- this.node_types_by_file_extension[`
`196`		`- base_class.supported_extensions[i].toLowerCase()`
`197`		`- ] = base_class;`
	`195`	`+ var ext = base_class.supported_extensions[i];`
	`196`	`+ if(ext && ext.constructor === String)`
	`197`	`+ this.node_types_by_file_extension[ ext.toLowerCase() ] = base_class;`
`198`	`198`	`}`
`199`	`199`	`}`
`200`	`200`	`},`