Set Go 1.13.10 as the default Go version until macOS segfault is fixed

See upstream bytecodealliance/wasmtime-go#10 and golang/go#39079

Author: avidal

.go-version

@@ -0,0 +1 @@
+1.13.10

go.mod

@@ -1,6 +1,6 @@
 module github.com/khan/fastlike
 
-go 1.14
+go 1.13
 
 require (
 	github.com/bytecodealliance/wasmtime-go v0.16.1

instance.go

@@ -30,7 +30,12 @@ type Instance struct {
 
 // ServeHTTP serves the supplied request and response pair. This is not safe to call twice.
 func (i *Instance) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	if strings.Contains(strings.Join(r.Header.Values("cdn-loop"), "\x00"), "fastlike") {
+	var loops, ok = r.Header[http.CanonicalHeaderKey("cdn-loop")]
+	if !ok {
+		loops = []string{""}
+	}
+
+	if strings.Contains(strings.Join(loops, "\x00"), "fastlike") {
 		// immediately respond with a loop detection
 		w.WriteHeader(http.StatusLoopDetected)
 		w.Write([]byte("Loop detected! This request has already come through your fastly program."))

xqd_request.go

@@ -161,10 +161,13 @@ func (i *Instance) xqd_req_header_values_get(handle int32, name_addr int32, name
 	}
 
 	var header = http.CanonicalHeaderKey(string(buf))
-	var values = r.Header.Values(header)
-
 	fmt.Printf("\tlooking for header %s\n", header)
 
+	var values, ok = r.Header[header]
+	if !ok {
+		values = []string{}
+	}
+
 	// Sort the values otherwise cursors don't work
 	sort.Strings(values[:])
 

xqd_response.go

@@ -91,7 +91,10 @@ func (i *Instance) xqd_resp_header_values_get(handle int32, name_addr int32, nam
 	}
 
 	var header = http.CanonicalHeaderKey(string(buf))
-	var values = w.Header.Values(header)
+	var values, ok = w.Header[header]
+	if !ok {
+		values = []string{}
+	}
 
 	fmt.Printf("\tlooking for header %s\n", header)