Replace url-unsafe characters in base64 query data

pkg/api/helpers_test.go

@@ -0,0 +1,19 @@
+package api
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func Test_desanitize64(t *testing.T) {
+	examples := map[string]string{
+		"test":        "test",
+		"test+test+":  "test-test-",
+		"test/test/":  "test_test_",
+		"test=test==": "test.test..",
+	}
+
+	for expected, example := range examples {
+		assert.Equal(t, expected, desanitize64(example))
+	}
+}