(fix) handle spaces in the file reader

pkg/readers/file.go

@@ -79,6 +79,10 @@ func (fr *FileReader) Read(ch chan<- string) error {
 // If any ports configuration exists, those will also be added as candidates.
 func (fr *FileReader) urlsFor(candidate string, ports []int) []string {
 	var urls []string
+
+	// trim any spaces
+	candidate = strings.TrimSpace(candidate)
+
 	// check if we got a scheme, add
 	hasScheme := strings.Contains(candidate, "://")
 	if !hasScheme {

pkg/readers/file_test.go

@@ -38,6 +38,15 @@ func TestUrlsFor(t *testing.T) {
 				"https://192.168.1.1:8080",
 			},
 		},
+		{
+			name:      "Test with IP and port with spaces",
+			candidate: "   192.168.1.1:8080   ",
+			ports:     []int{80, 443, 8443},
+			want: []string{
+				"http://192.168.1.1:8080",
+				"https://192.168.1.1:8080",
+			},
+		},
 		{
 			name:      "Test with scheme, IP and port",
 			candidate: "http://192.168.1.1:8080",