add HTML5 doctype to all tests

[dygraphs.git] / tests / negative.html
diff --git a/tests/negative.html b/tests/negative.html

index 0a341dc..0b96e23 100644 (file)
--- a/tests/negative.html
+++ b/tests/negative.html
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
  <html>
    <head>
      <title>negatives</title>