diff --git a/cmd/karma/main.go b/cmd/karma/main.go
index 26d1c426d..4732aae52 100644
--- a/cmd/karma/main.go
+++ b/cmd/karma/main.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"html/template"
+	"mime"
 	"net/http"
 	"os"
 	"os/signal"
@@ -89,6 +90,8 @@ func headerAuth(name, valueRegex string) gin.HandlerFunc {
 }
 
 func setupRouter(router *gin.Engine) {
+	_ = mime.AddExtensionType(".ico", "image/x-icon")
+
 	router.Use(gzip.Gzip(gzip.DefaultCompression))
 
 	router.Use(setStaticHeaders(getViewURL("/static/")))
diff --git a/scripts/gocover.sh b/scripts/gocover.sh
index 6139327bd..35bc62948 100755
--- a/scripts/gocover.sh
+++ b/scripts/gocover.sh
@@ -1,16 +1,30 @@
 #!/usr/bin/env bash
 
-set -e
+set -o errexit
+set -o pipefail
+
+trap cleanup INT
+
+function cleanup() {
+    rm -f coverage.txt coverage.out profile.out
+    exit
+}
 
 echo "" > coverage.txt
 
-for d in $(go list ./... | grep -vE 'prymitive/karma/internal/mapper/v017/(client|models)'); do
-    go test \
-        -coverprofile=profile.out \
-        -coverpkg=$(go list ./... | grep -vE 'prymitive/karma/internal/mapper/v017/(client|models)' | tr '\n' ',') \
-        $d 2>&1 | grep -v 'warning: no packages being tested depend on matches for pattern' | sed s/'of statements in .*'/''/g
+PKGS=$(go list ./... | grep -vE 'prymitive/karma/internal/mapper/v017/(client|models)')
+COVERPKG=$(echo "$PKGS" | tr '\n' ',')
+for d in $PKGS; do
+    (go test -coverprofile=profile.out -coverpkg="$COVERPKG" $d 2>&1 || exit 2) \
+        | grep -v 'warning: no packages being tested depend on matches for pattern' \
+        | sed s/'of statements in .*'/''/g
     if [ -f profile.out ]; then
         cat profile.out >> coverage.txt
         rm profile.out
     fi
 done
+
+echo "mode: set" > coverage.out
+cat coverage.txt | grep -v "mode: set" | grep -vE '^$' | grep -vE '^github.com/prymitive/karma/cmd/karma/bindata_assetfs.go:' >> coverage.out
+mv coverage.out coverage.txt
+go tool cover -func coverage.txt | tail -n 1 | awk '{print $3}'