revert #273 with explaination

url/README.md

@@ -41,6 +41,13 @@ scanme.sh/%invalid/path
   - `.UpdateRelPath(newrelpath string, unsafe bool)` 
   - `.Clone()` and more
 
+- Dealing with Double URL Encoding of chars like `%0A` when `.Path` is directly updated
+
+    when `url.Parse` is used to parse url like `https://127.0.0.1/%0A` it internally calls `u.setPath` which decodes `%0A` to `\n` and saves it in `u.Path` and when final url is created at time of writing to connection in http.Request Path is then escaped again thus `\n` becomes `%0A` and final url becomes `https://127.0.0.1/%0A` which is expected/required behavior.
+
+    If `u.Path` is changed/updated directly after `url.Parse` ex: `u.Path = "%0A"` then at time of writing to connection in http.Request, Path is escaped again thus `%0A` becomes `%250A` and final url becomes `https://127.0.0.1/%250A` which is not expected/required behavior to avoid this we manually unescape/decode `u.Path` and we set `u.Path = unescape(u.Path)` which takes care of this edgecase.
+
+    This is how `utils/url/URL` handles this edgecase when `u.Path` is directly updated.
 
 ### Note
 

url/url.go

@@ -100,7 +100,7 @@ func (u *URL) Clone() *URL {
 // String
 func (u *URL) String() string {
 	var buff bytes.Buffer
-	if u.Scheme != "" {
+	if u.Scheme != "" && u.Host != "" {
 		buff.WriteString(u.Scheme + "://")
 	}
 	if u.User != nil {
@@ -308,10 +308,6 @@ func ParseURL(inputURL string, unsafe bool) (*URL, error) {
 	}
 	if u.IsRelative {
 		return ParseRelativePath(inputURL, unsafe)
-	} else if unsafe {
-		// we are not relative, but we still need to call this in order to call
-		// the internal parser for paths url.Parse will not handle.
-		u.parseUnsafeRelativePath()
 	}
 	return u, nil
 }

url/url_test.go

@@ -146,7 +146,7 @@ func TestParseInvalidUnsafe(t *testing.T) {
 	for _, input := range testcases {
 		u, err := ParseURL(input, true)
 		require.Nilf(t, err, "got error for url %v", input)
-		require.Equal(t, input, u.String())
+		require.Equal(t, input, u.URL.String())
 	}
 }