fix for caniuse update

polyfills · Dec 5, 2014 · e3a8e75 · e3a8e75
1 parent f4628e0
commit e3a8e75
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/lib/feature.js b/lib/feature.js
@@ -87,7 +87,10 @@ var caniuseBrowsers = {
 
 function lowestOf(obj, browser, feature) {
   // versions are listed in ascending order
-  var versions = Object.keys(obj).sort(function (a, b) {
+  var versions = Object.keys(obj).filter(function (version) {
+    if (~version.indexOf('-')) return true;
+    return semver.validRange(version);
+  }).sort(function (a, b) {
     return semver.compare(semverify(a), semverify(b))
   })