From a6d7bc2e569c97af93cbb90ceb04b78e5b640bf2 Mon Sep 17 00:00:00 2001
From: WofWca <wofwca@protonmail.com>
Date: Tue, 7 Sep 2021 06:54:02 +0300
Subject: [PATCH 1/2] fix: a memory leak appearing when some
 `timeSeries.disabled === true`

Introduced in 86574e
---
 smoothie.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/smoothie.js b/smoothie.js
index ad40ed5..178cdd4 100644
--- a/smoothie.js
+++ b/smoothie.js
@@ -910,18 +910,18 @@
 
     // For each data set...
     for (var d = 0; d < this.seriesSet.length; d++) {
-      context.save();
       var timeSeries = this.seriesSet[d].timeSeries;
+
+      // Delete old data that's moved off the left of the chart.
+      timeSeries.dropOldData(oldestValidTime, chartOptions.maxDataSetLength);
       if (timeSeries.disabled) {
           continue;
       }
+      context.save();
 
       var dataSet = timeSeries.data,
           seriesOptions = this.seriesSet[d].options;
 
-      // Delete old data that's moved off the left of the chart.
-      timeSeries.dropOldData(oldestValidTime, chartOptions.maxDataSetLength);
-
       // Set style for this dataSet.
       context.lineWidth = seriesOptions.lineWidth;
       context.strokeStyle = seriesOptions.strokeStyle;

From 85cb245f7c0df6660f6218a4416f0f2fde454cbb Mon Sep 17 00:00:00 2001
From: WofWca <wofwca@protonmail.com>
Date: Tue, 7 Sep 2021 07:11:05 +0300
Subject: [PATCH 2/2] docs: update changelog

---
 smoothie.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/smoothie.js b/smoothie.js
index 178cdd4..9486b87 100644
--- a/smoothie.js
+++ b/smoothie.js
@@ -95,6 +95,7 @@
  *        Add title option, by @mesca
  *        Fix data drop stoppage by rejecting NaNs in append(), by @timdrysdale
  *        Allow setting interpolation per time series, by @WofWca (#123)
+ *        Fix a memory leak appearing when some `timeSeries.disabled === true`, by @WofWca (#132)
  */
 
 ;(function(exports) {