Check AC State (#1033)

Should not close audiocontext when it's already closed. Chrome throws a warning if done so.
katspaugh · Mar 8, 2017 · f6ce2c3 · f6ce2c3
1 parent a8a6a6f
commit f6ce2c3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/webaudio.js b/src/webaudio.js
@@ -286,7 +286,7 @@ WaveSurfer.WebAudio = {
         // close the audioContext if closeAudioContext option is set to true
         if (this.params.closeAudioContext) {
             // check if browser supports AudioContext.close()
-            if (typeof this.ac.close === 'function') {
+            if (typeof this.ac.close === 'function' && this.ac.state != 'closed') {
                 this.ac.close();
             }
             // clear the reference to the audiocontext