Error callback processed consistent with other config properties

papaparse.js

@@ -21,6 +21,7 @@
 		worker: false,
 		comments: false,
 		complete: undefined,
+		error: undefined,
 		download: false,
 		chunk: undefined,
 		keepEmptyRows: false
@@ -1281,6 +1282,9 @@
 		if (typeof config.complete !== 'function')
 			config.complete = DEFAULTS.complete;
 
+		if (typeof config.error !== 'function')
+			config.error = DEFAULTS.error;
+
 		if (typeof config.encoding !== 'string')
 			config.encoding = DEFAULTS.encoding;