compat note about firstContentfulPaint trace event.

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GoogleChrome · Jul 26, 2016 · 3e81a6d · 3e81a6d
1 parent da09ffb
commit 3e81a6d
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lighthouse-core/audits/first-meaningful-paint.js b/lighthouse-core/audits/first-meaningful-paint.js
@@ -174,6 +174,7 @@ class FirstMeaningfulPaint extends Audit {
       }
       // firstContentfulPaint == the first time that text or image content was
       // painted. See src/third_party/WebKit/Source/core/paint/PaintTiming.h
+      // COMPAT: firstContentfulPaint trace event first introduced in Chrome 49 (r370921)
       if (event.name === 'firstContentfulPaint' && event.args.frame === mainFrameID) {
         firstContentfulPaint = event;
       }