diff --git a/cover.html b/cover.html
new file mode 100644
index 0000000..3e764a4
--- /dev/null
+++ b/cover.html
@@ -0,0 +1,150 @@
+
+<!DOCTYPE html>
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+		<title>header: Go Coverage Report</title>
+		<style>
+			body {
+				background: black;
+				color: rgb(80, 80, 80);
+			}
+			body, pre, #legend span {
+				font-family: Menlo, monospace;
+				font-weight: bold;
+			}
+			#topbar {
+				background: black;
+				position: fixed;
+				top: 0; left: 0; right: 0;
+				height: 42px;
+				border-bottom: 1px solid rgb(80, 80, 80);
+			}
+			#content {
+				margin-top: 50px;
+			}
+			#nav, #legend {
+				float: left;
+				margin-left: 10px;
+			}
+			#legend {
+				margin-top: 12px;
+			}
+			#nav {
+				margin-top: 10px;
+			}
+			#legend span {
+				margin: 0 5px;
+			}
+			.cov0 { color: rgb(192, 0, 0) }
+.cov1 { color: rgb(128, 128, 128) }
+.cov2 { color: rgb(116, 140, 131) }
+.cov3 { color: rgb(104, 152, 134) }
+.cov4 { color: rgb(92, 164, 137) }
+.cov5 { color: rgb(80, 176, 140) }
+.cov6 { color: rgb(68, 188, 143) }
+.cov7 { color: rgb(56, 200, 146) }
+.cov8 { color: rgb(44, 212, 149) }
+.cov9 { color: rgb(32, 224, 152) }
+.cov10 { color: rgb(20, 236, 155) }
+
+		</style>
+	</head>
+	<body>
+		<div id="topbar">
+			<div id="nav">
+				<select id="files">
+				
+				<option value="file0">github.com/gopatchy/header/authorization.go (71.4%)</option>
+				
+				</select>
+			</div>
+			<div id="legend">
+				<span>not tracked</span>
+			
+				<span class="cov0">no coverage</span>
+				<span class="cov1">low coverage</span>
+				<span class="cov2">*</span>
+				<span class="cov3">*</span>
+				<span class="cov4">*</span>
+				<span class="cov5">*</span>
+				<span class="cov6">*</span>
+				<span class="cov7">*</span>
+				<span class="cov8">*</span>
+				<span class="cov9">*</span>
+				<span class="cov10">high coverage</span>
+			
+			</div>
+		</div>
+		<div id="content">
+		
+		<pre class="file" id="file0" style="display: none">package header
+
+import (
+        "encoding/base64"
+        "net/http"
+        "strings"
+
+        "github.com/gopatchy/jsrest"
+)
+
+func ParseAuthorization(r *http.Request) (string, string) <span class="cov10" title="2">{
+        auth := r.Header.Get("Authorization")
+
+        if auth == "" </span><span class="cov0" title="0">{
+                return "", ""
+        }</span>
+
+        <span class="cov10" title="2">parts := strings.Split(auth, " ")
+        if len(parts) != 2 </span><span class="cov0" title="0">{
+                return "", ""
+        }</span>
+
+        <span class="cov10" title="2">return parts[0], parts[1]</span>
+}
+
+func ParseBasic(val string) (string, string, error) <span class="cov1" title="1">{
+        raw, err := base64.StdEncoding.DecodeString(val)
+        if err != nil </span><span class="cov0" title="0">{
+                return "", "", jsrest.Errorf(jsrest.ErrBadRequest, "Authorization header Basic data base64 decode failed (%w)", err)
+        }</span>
+
+        <span class="cov1" title="1">parts := strings.SplitN(string(raw), ":", 2)
+        if len(parts) != 2 </span><span class="cov0" title="0">{
+                return "", "", jsrest.Errorf(jsrest.ErrBadRequest, "Authorization header Basic data malformed")
+        }</span>
+
+        <span class="cov1" title="1">return parts[0], parts[1], nil</span>
+}
+</pre>
+		
+		</div>
+	</body>
+	<script>
+	(function() {
+		var files = document.getElementById('files');
+		var visible;
+		files.addEventListener('change', onChange, false);
+		function select(part) {
+			if (visible)
+				visible.style.display = 'none';
+			visible = document.getElementById(part);
+			if (!visible)
+				return;
+			files.value = part;
+			visible.style.display = 'block';
+			location.hash = part;
+		}
+		function onChange() {
+			select(files.value);
+			window.scrollTo(0, 0);
+		}
+		if (location.hash != "") {
+			select(location.hash.substr(1));
+		}
+		if (!visible) {
+			select("file0");
+		}
+	})();
+	</script>
+</html>
diff --git a/cover.out b/cover.out
new file mode 100644
index 0000000..69af464
--- /dev/null
+++ b/cover.out
@@ -0,0 +1,11 @@
+mode: atomic
+github.com/gopatchy/header/authorization.go:11.59,14.16 2 2
+github.com/gopatchy/header/authorization.go:14.16,16.3 1 0
+github.com/gopatchy/header/authorization.go:18.2,19.21 2 2
+github.com/gopatchy/header/authorization.go:19.21,21.3 1 0
+github.com/gopatchy/header/authorization.go:23.2,23.27 1 2
+github.com/gopatchy/header/authorization.go:26.53,28.16 2 1
+github.com/gopatchy/header/authorization.go:28.16,30.3 1 0
+github.com/gopatchy/header/authorization.go:32.2,33.21 2 1
+github.com/gopatchy/header/authorization.go:33.21,35.3 1 0
+github.com/gopatchy/header/authorization.go:37.2,37.32 1 1
