Update stack-navigator.md

youngjuning · web-flow · commit 06359e8e4c81 · 2019-06-14T10:30:16.000+08:00
diff --git a/docs/stack-navigator.md b/docs/stack-navigator.md
@@ -96,7 +96,7 @@ String, React Element or React Component used by the header. Defaults to scene `
 
 #### `headerTitleAllowFontScaling`
 
-Whether header title font should scale to respect Text Size accessibility settings. Defaults to true.
+Whether header title font should scale to respect Text Size accessibility settings. Defaults to false.
 
 #### `headerBackAllowFontScaling`
 
