diff --git a/content.js b/content.js index 9ec6ab43bdb6d67bbc991531d03c3836da2c1ce1..5289a14d11acd709a7e652d09ccbdf67adf9cfed 100644 --- a/content.js +++ b/content.js @@ -598,9 +598,11 @@ let Content = { let p = 0; ['C4', 'D4', 'D#4', 'C#4', 'E4'].forEach(function (id) { let b = doc.getElementById(id); - b.click(); - p += b.classList.contains('last-played') ? 1 : 0; - p += doc.querySelectorAll('.last-played').length == 1 ? 1 : 0; + if (b) { + b.click(); + p += b.classList.contains('last-played') ? 1 : 0; + p += doc.querySelectorAll('.last-played').length == 1 ? 1 : 0; + } }); return { points: p }; },