1 files changed, 2 insertions, 2 deletions
diff --git a/js/Sinks/CFSCOPE.js b/js/Sinks/CFSCOPE.js
index 57294d55..928fb538 100644
--- a/js/Sinks/CFSCOPE.js
+++ b/js/Sinks/CFSCOPE.js
@@ -88,10 +88,10 @@ function CFSCOPE() {
                 throw "user error";
             }
             if (ok) {
-                if (this.wpos==[]) {
+                if (this.wpos.length==0) {
                     this.wpos = [[-1],[-1]];
                 }
-                if (this.wdim==[]) {
+                if (this.wdim.length==0) {
                     this.wdim = [[-1],[-1]];
                 }
                 var rpar = [[0],[this.ymin],[this.ymax],[this.per]];