Because browsers have a good track record of getting this right, and sufficient funding to get this right, and the server-side work gets to piggy-back on that.

Because browsers have a good track record of getting this right, and sufficient funding to get this right, and the server-side work gets to piggy-back on that. Also because the API surface area that server side apps need is really just not big, JVM had a lot of problems because it tried to do too much.