Throw IndexError if start_in_channel is equal to ArrayBuffer length

servo · bors-servo · Sep 19, 2018 · Sep 4, 2018 · Sep 7, 2018 · Sep 7, 2018
commit a81389268aa9937972dd1c9fc6fb5c4bd96d2c7e
diff --git a/components/script/dom/audiobuffer.rs b/components/script/dom/audiobuffer.rs
@@ -227,7 +227,7 @@ impl AudioBufferMethods for AudioBuffer {
             return Err(Error::Type("Cannot copy to shared buffer".to_owned()));
         }
 
-        if channel_number >= self.number_of_channels || start_in_channel > self.length {
+        if channel_number >= self.number_of_channels || start_in_channel >= self.length {
             return Err(Error::IndexSize);
         }