Loading a Web page is more resource intensive than ever (see the HTTP Archive’s page size statistics), and loading all of those assets efficiently is difficult, because HTTP practically only allows one outstanding request per TCP connection.
In the past, browsers have used multiple TCP connections to issue parallel requests. However, there are limits to this; if too many connections are used, it’s both counter-productive (TCP congestion control is effectively negated, leading to congestion events that hurt performance and the network), and it’s fundamentally unfair (because browsers are taking more than their share of network resources).
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Sometimes some dependency on maven is without the jar file but only the POM so the sbt throw an error.To specify this case in your Build.scala you have to add pomOnly() in your dependency.For example:"org.openid4java" % "openid4java-consumer" % "0.9.6" pomOnly()...