fix: workaround to enable http2 for semaphore

src/builders/selfhosted.go

@@ -16,7 +16,7 @@ type SelfHostedData struct {
 func MakeSelfHosted(data *SelfHostedData) *SelfHosted {
 	return &SelfHosted{
 		SelfHostedData: data,
-		Client: sling.New().Client(MakeClient(true)).
+		Client: sling.New().Client(MakeClient()).
 			Base(data.Url).
 			SetMany(map[string]string{
 				"Authorization": "Bearer " + data.Key,

src/builders/semaphore.go

@@ -23,8 +23,10 @@ func MakeSemaphore(data *SemaphoreData) *Semaphore {
 	return &Semaphore{
 		data:    data,
 		baseUrl: baseUrl,
-		client: sling.New().Client(MakeClient(false)).
-			Base(baseUrl + "api/").
+		client: sling.New().Client(MakeClient()).
+			Base(baseUrl+"api/").
+			// default Go http2 user agent is (accidentally) blocked by the API server
+			Set("User-Agent", "curl/7.75.0").
 			SetMany(map[string]string{
 				"Authorization": "Token " + data.Token,
 			}),

src/builders/shared.go

@@ -1,26 +1,11 @@
 package builders
 
 import (
-	"net"
 	"net/http"
-	"time"
 )
 
-func MakeClient(attemptHttp2 bool) *http.Client {
-	transport := http.Transport{
-		// Cloned http.DefaultTransport.
-		Proxy: http.ProxyFromEnvironment,
-		DialContext: (&net.Dialer{
-			Timeout:   30 * time.Second,
-			KeepAlive: 30 * time.Second,
-		}).DialContext,
-		ForceAttemptHTTP2:     attemptHttp2,
-		MaxIdleConns:          100,
-		IdleConnTimeout:       90 * time.Second,
-		TLSHandshakeTimeout:   10 * time.Second,
-		ExpectContinueTimeout: 1 * time.Second,
-	}
-	return &http.Client{Transport: &transport}
+func MakeClient() *http.Client {
+	return http.DefaultClient
 }
 
 type Builder interface {