diff --git a/build.sc b/build.sc
index 3d0b375ae0..dfe03805a6 100644
--- a/build.sc
+++ b/build.sc
@@ -51,7 +51,7 @@ object cask extends ScalaModule with PublishModule {
     def testFrameworks = Seq("utest.runner.Framework")
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
       ivy"org.xerial:sqlite-jdbc:3.18.0",
       ivy"io.getquill::quill-jdbc:2.5.4"
     )
diff --git a/cask/src/cask/endpoints/WebEndpoints.scala b/cask/src/cask/endpoints/WebEndpoints.scala
index 9fe28a0184..ab3b4808b1 100644
--- a/cask/src/cask/endpoints/WebEndpoints.scala
+++ b/cask/src/cask/endpoints/WebEndpoints.scala
@@ -13,12 +13,16 @@ trait WebEndpoint extends Endpoint{
   type InputParser[T] = QueryParamReader[T]
   def wrapFunction(ctx: Request,
                        delegate: Map[String, Input] => Router.Result[Output]): Router.Result[Response] = {
-    delegate(
-      ctx.exchange.getQueryParameters
-        .asScala
-        .map{case (k, vs) => (k, vs.asScala.toArray.toSeq)}
-        .toMap
-    )
+
+    val b = Map.newBuilder[String, Seq[String]]
+    val queryParams = ctx.exchange.getQueryParameters
+    for(k <- queryParams.keySet().iterator().asScala){
+      val deque = queryParams.get(k)
+      val arr = new Array[String](deque.size)
+      deque.toArray(arr)
+      b += (k -> (arr: Seq[String]))
+    }
+    delegate(b.result())
   }
   def wrapPathSegment(s: String) = Seq(s)
 }
diff --git a/cask/src/cask/internal/Router.scala b/cask/src/cask/internal/Router.scala
index 9fa9b60166..64af4cda78 100644
--- a/cask/src/cask/internal/Router.scala
+++ b/cask/src/cask/internal/Router.scala
@@ -2,6 +2,7 @@ package cask.internal
 
 import language.experimental.macros
 import scala.annotation.StaticAnnotation
+import scala.collection.mutable
 import scala.reflect.macros.blackbox.Context
 
 /**
@@ -44,14 +45,25 @@ object Router{
                               argSignatures: Seq[Seq[ArgSig[_, T, _, C]]],
                               doc: Option[String],
                               invoke0: (T, C, Seq[Map[String, Any]], Seq[Seq[ArgSig[Any, _, _, C]]]) => Result[Any]){
+
+    val firstArgs = argSignatures.head
+      .map(x => x.name -> x)
+      .toMap[String, Router.ArgSig[_, T, _, C]]
+
     def invoke(target: T,
                ctx: C,
                paramLists: Seq[Map[String, Any]]): Result[Any] = {
 
-      val unknown = paramLists.head.keySet -- argSignatures.head.map(_.name).toSet
-      val missing = argSignatures.head.filter(as =>
-        as.reads.arity != 0 && !paramLists.head.contains(as.name) && as.default.isEmpty
-      )
+      val missing = mutable.Buffer.empty[Router.ArgSig[_, T, _, C]]
+
+      val unknown = paramLists.head.keys.filter(!firstArgs.contains(_))
+
+      for(k <- firstArgs.keys) {
+        if (!paramLists.head.contains(k)) {
+          val as = firstArgs(k)
+          if (as.reads.arity != 0 && as.default.isEmpty) missing.append(as)
+        }
+      }
 
       if (missing.nonEmpty || unknown.nonEmpty) Result.Error.MismatchedArguments(missing, unknown.toSeq)
       else {
@@ -313,9 +325,9 @@ class Router[C <: Context](val c: C) {
       ${method.name.toString},
       ${argSigs.toList},
       ${methodDoc match{
-      case None => q"scala.None"
-      case Some(s) => q"scala.Some($s)"
-    }},
+        case None => q"scala.None"
+        case Some(s) => q"scala.Some($s)"
+      }},
       (
         $baseArgSym: $curCls,
         $ctxSymbol: $ctx,
diff --git a/cask/src/cask/internal/Util.scala b/cask/src/cask/internal/Util.scala
index 7da343eb13..431944a2f4 100644
--- a/cask/src/cask/internal/Util.scala
+++ b/cask/src/cask/internal/Util.scala
@@ -54,8 +54,34 @@ object Util {
   def pluralize(s: String, n: Int) = {
     if (n == 1) s else s + "s"
   }
-  def splitPath(p: String) = {
-    p.dropWhile(_ == '/').reverse.dropWhile(_ == '/').reverse.split('/').filter(_.nonEmpty)
+
+  /**
+    * Splits a string into path segments; automatically removes all
+    * leading/trailing slashes, and ignores empty path segments.
+    *
+    * Written imperatively for performance since it's used all over the place.
+    */
+  def splitPath(p: String): IndexedSeq[String] = {
+    val pLength = p.length
+    var i = 0
+    while(i < pLength && p(i) == '/') i += 1
+    var segmentStart = i
+    val out = mutable.ArrayBuffer.empty[String]
+
+    def complete() = {
+      if (i != segmentStart) {
+        val s = p.substring(segmentStart, i)
+        out += s
+      }
+      segmentStart = i + 1
+    }
+
+    while(i < pLength){
+      if (p(i) == '/') complete()
+      i += 1
+    }
+    complete()
+    out
   }
 
   def stackTraceString(e: Throwable) = {
diff --git a/cask/src/cask/main/Main.scala b/cask/src/cask/main/Main.scala
index 5c0b120cdf..e12683fbce 100644
--- a/cask/src/cask/main/Main.scala
+++ b/cask/src/cask/main/Main.scala
@@ -78,26 +78,33 @@ abstract class BaseMain{
                 writeResponseHandler(r).handleRequest(exchange)
             }
             )
-        } else {
-          exchange.getRequestMethod.toString.toLowerCase() -> ((r: Any) => writeResponse(exchange, r.asInstanceOf[Response]))
-        }
+        } else (
+          exchange.getRequestMethod.toString.toLowerCase(),
+          (r: Any) => writeResponse(exchange, r.asInstanceOf[Response])
+        )
 
         routeTries(effectiveMethod).lookup(Util.splitPath(exchange.getRequestPath).toList, Map()) match {
-          case None =>
-            writeResponse(exchange, handleNotFound())
-          case Some(((routes, metadata), extBindings, remaining)) =>
+          case None => writeResponse(exchange, handleNotFound())
+          case Some(((routes, metadata), routeBindings, remaining)) =>
             val ctx = Request(exchange, remaining)
             def rec(remaining: List[Decorator],
                     bindings: List[Map[String, Any]]): Router.Result[Any] = try {
               remaining match {
                 case head :: rest =>
-                  head.wrapFunction(ctx, args => rec(rest, args :: bindings).asInstanceOf[Router.Result[head.Output]])
+                  head.wrapFunction(
+                    ctx,
+                    args => rec(rest, args :: bindings).asInstanceOf[Router.Result[head.Output]]
+                  )
 
                 case Nil =>
-                  metadata.endpoint.wrapFunction(ctx, epBindings =>
+                  metadata.endpoint.wrapFunction(ctx, endpointBindings =>
                     metadata.entryPoint
                       .asInstanceOf[EntryPoint[cask.main.Routes, cask.model.Request]]
-                      .invoke(routes, ctx, (epBindings ++ extBindings.mapValues(metadata.endpoint.wrapPathSegment)) :: bindings.reverse)
+                      .invoke(
+                        routes, ctx,
+                        (endpointBindings ++ routeBindings.mapValues(metadata.endpoint.wrapPathSegment))
+                        :: bindings.reverse
+                      )
                       .asInstanceOf[Router.Result[Nothing]]
                   )
               }
diff --git a/cask/test/src/test/cask/UtilTests.scala b/cask/test/src/test/cask/UtilTests.scala
new file mode 100644
index 0000000000..7b34434415
--- /dev/null
+++ b/cask/test/src/test/cask/UtilTests.scala
@@ -0,0 +1,22 @@
+package test.cask
+
+import utest._
+
+object UtilTests extends TestSuite {
+  val tests = Tests{
+    'splitPath - {
+      cask.internal.Util.splitPath("") ==> Seq()
+      cask.internal.Util.splitPath("/") ==> Seq()
+      cask.internal.Util.splitPath("////") ==> Seq()
+
+      cask.internal.Util.splitPath("abc") ==> Seq("abc")
+      cask.internal.Util.splitPath("/abc/") ==> Seq("abc")
+      cask.internal.Util.splitPath("//abc") ==> Seq("abc")
+      cask.internal.Util.splitPath("abc//") ==> Seq("abc")
+
+      cask.internal.Util.splitPath("abc//def") ==> Seq("abc", "def")
+      cask.internal.Util.splitPath("//abc//def//") ==> Seq("abc", "def")
+    }
+  }
+}
+
diff --git a/example/compress/build.sc b/example/compress/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/compress/build.sc
+++ b/example/compress/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/compress2/build.sc b/example/compress2/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/compress2/build.sc
+++ b/example/compress2/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/compress3/build.sc b/example/compress3/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/compress3/build.sc
+++ b/example/compress3/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/cookies/build.sc b/example/cookies/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/cookies/build.sc
+++ b/example/cookies/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/decorated/build.sc b/example/decorated/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/decorated/build.sc
+++ b/example/decorated/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/decorated2/build.sc b/example/decorated2/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/decorated2/build.sc
+++ b/example/decorated2/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/endpoints/build.sc b/example/endpoints/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/endpoints/build.sc
+++ b/example/endpoints/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/formJsonPost/build.sc b/example/formJsonPost/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/formJsonPost/build.sc
+++ b/example/formJsonPost/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/httpMethods/build.sc b/example/httpMethods/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/httpMethods/build.sc
+++ b/example/httpMethods/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/minimalApplication/build.sc b/example/minimalApplication/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/minimalApplication/build.sc
+++ b/example/minimalApplication/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/minimalApplication2/build.sc b/example/minimalApplication2/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/minimalApplication2/build.sc
+++ b/example/minimalApplication2/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/redirectAbort/build.sc b/example/redirectAbort/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/redirectAbort/build.sc
+++ b/example/redirectAbort/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/scalatags/build.sc b/example/scalatags/build.sc
index 12e8ff9ca1..cf8b34c441 100644
--- a/example/scalatags/build.sc
+++ b/example/scalatags/build.sc
@@ -13,7 +13,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/staticFiles/build.sc b/example/staticFiles/build.sc
index 4f4716dcd4..4040676eef 100644
--- a/example/staticFiles/build.sc
+++ b/example/staticFiles/build.sc
@@ -14,7 +14,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
 
     def forkWorkingDir = build.millSourcePath
diff --git a/example/todo/build.sc b/example/todo/build.sc
index 37e5253fc3..a71a287ee5 100644
--- a/example/todo/build.sc
+++ b/example/todo/build.sc
@@ -15,7 +15,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/todoApi/build.sc b/example/todoApi/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/todoApi/build.sc
+++ b/example/todoApi/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/todoDb/build.sc b/example/todoDb/build.sc
index 52ac761383..77e580e323 100644
--- a/example/todoDb/build.sc
+++ b/example/todoDb/build.sc
@@ -14,7 +14,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/twirl/build.sc b/example/twirl/build.sc
index 55ea56292b..646bea7834 100644
--- a/example/twirl/build.sc
+++ b/example/twirl/build.sc
@@ -17,7 +17,7 @@ trait AppModule extends ScalaModule with mill.twirllib.TwirlModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/variableRoutes/build.sc b/example/variableRoutes/build.sc
index e5faf4bea0..03421a3212 100644
--- a/example/variableRoutes/build.sc
+++ b/example/variableRoutes/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
     )
   }
 }
\ No newline at end of file
diff --git a/example/websockets/build.sc b/example/websockets/build.sc
index ef595b14ba..909c6b192d 100644
--- a/example/websockets/build.sc
+++ b/example/websockets/build.sc
@@ -12,7 +12,7 @@ trait AppModule extends ScalaModule{
 
     def ivyDeps = Agg(
       ivy"com.lihaoyi::utest::0.6.3",
-      ivy"com.lihaoyi::requests::0.1.3",
+      ivy"com.lihaoyi::requests::0.1.5",
       ivy"org.asynchttpclient:async-http-client:2.5.2"
     )
   }