diff --git a/src/tests/frontend/specs/inner_height.js b/src/tests/frontend/specs/inner_height.js
new file mode 100644
index 00000000..526aba88
--- /dev/null
+++ b/src/tests/frontend/specs/inner_height.js
@@ -0,0 +1,31 @@
+'use strict';
+
+describe('height regression after ace.js refactoring', function () {
+  before(function (cb) {
+    helper.newPad(cb);
+  });
+
+  // everything fits inside the viewport
+  it('clientHeight should equal scrollHeight with few lines', function() {
+    const aceOuter = helper.padChrome$('iframe')[0].contentDocument;
+    const clientHeight = aceOuter.documentElement.clientHeight;
+    const scrollHeight = aceOuter.documentElement.scrollHeight;
+    expect(clientHeight).to.be(scrollHeight);
+  });
+
+  it('client height should be less than scrollHeight with many lines', async function () {
+    await helper.clearPad();
+    await helper.edit('Test line\n' +
+      '\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n' +
+      '\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n' +
+      '\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n' +
+      '\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n' +
+      '\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n' +
+      '\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n' +
+      '\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n');
+    const aceOuter = helper.padChrome$('iframe')[0].contentDocument;
+    const clientHeight = aceOuter.documentElement.clientHeight;
+    const scrollHeight = aceOuter.documentElement.scrollHeight;
+    expect(clientHeight).to.be.lessThan(scrollHeight);
+  });
+});