SVG Favicons in Mojave Safari
Why are the icons different? The answer lies in this one line of page markup:
<link rel="mask-icon" href="/favicon.svg" color="#990000">We keep a
favicon.ico
file in the root of the website filesystem for compatibility with browsers that don’t support vector icons. But Safari knows that SVG will look better on a high resolution display, so it checks for afavicon.svg
first.
Previously: Safari Should Display Favicons in Its Tabs.