What about not using a polyfill? It's 2020. How many visitors would really be bothered? People using ie9 should be used to getting errors and exploded layouts anyway.
I still want to support IE11 as it comes pre-installed on Windows machines alongside Edge by default. It's okay to support it in this way since the polyfills don't affect performance on supported browsers.
I don't see any issue here. It's always okay to support older browsers and ensure good UX for them if it's viable and if it's not at performance cost, no matter which year it is.
This is true, however alot of hospitals and other clinicalsites around the world is still using windows xp or if updated and upgraded - windows 7. So if you develop anything for these particular users, this is pretty helpful if you don't want to fiddle around with ajax syntax.
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What about not using a polyfill? It's 2020. How many visitors would really be bothered? People using ie9 should be used to getting errors and exploded layouts anyway.
I still want to support IE11 as it comes pre-installed on Windows machines alongside Edge by default. It's okay to support it in this way since the polyfills don't affect performance on supported browsers.
I don't see any issue here. It's always okay to support older browsers and ensure good UX for them if it's viable and if it's not at performance cost, no matter which year it is.
Sure it's a hard sell but my point is that all that backward compatibility is holding back the platform as a whole. And Edge should have replaced IE.
That's easy to say, but a lot of enterprise environments still use IE on their workstations. They will expect their site to perform as normal.
This is true, however alot of hospitals and other clinicalsites around the world is still using windows xp or if updated and upgraded - windows 7. So if you develop anything for these particular users, this is pretty helpful if you don't want to fiddle around with ajax syntax.