Merge pull request #2687 from influxdata/bugfix/legend-no-value

Remove no-value from list

CHANGELOG.md

@@ -16,6 +16,7 @@
 ### Bug Fixes
 1. [#2652](https://github.com/influxdata/chronograf/pull/2652): Make page render successfully when attempting to edit a source
 1. [#2664](https://github.com/influxdata/chronograf/pull/2664): Fix CustomTimeIndicator positioning
+1. [#2687](https://github.com/influxdata/chronograf/pull/2687): Remove series with "no value" from legend
 
 ## v1.4.0.0-rc2 [2017-12-21]
 ### UI Improvements

ui/src/shared/components/DygraphLegend.js

@@ -29,8 +29,9 @@ const DygraphLegend = ({
   isFilterVisible,
   onToggleFilter,
 }) => {
+  const withValues = series.filter(s => s.y)
   const sorted = _.sortBy(
-    series,
+    withValues,
     ({y, label}) => (sortType === 'numeric' ? y : label)
   )