diff --git a/jira/resources.py b/jira/resources.py
index a2bb49bd5..d70c498db 100644
--- a/jira/resources.py
+++ b/jira/resources.py
@@ -295,19 +295,21 @@ def _get_url(self, path: str) -> str:
 
     def _validate_self_self_url(self) -> None:
         """In the case of a proxy, use the configured option server URL."""
-        self_parsed = urlparse(self.self)
-        server_parsed = urlparse(self._options["server"])
-        if self_parsed.netloc != server_parsed.netloc:
-            self.self = urlunparse(
-                ParseResult(
-                    scheme=server_parsed.scheme,
-                    netloc=server_parsed.netloc,
-                    path=self_parsed.path,
-                    params=self_parsed.params,
-                    query=self_parsed.query,
-                    fragment=self_parsed.fragment,
+        if getattr(self, "self", None):
+            self.self: str
+            self_parsed = urlparse(self.self)
+            server_parsed = urlparse(self._options["server"])
+            if self_parsed.netloc != server_parsed.netloc:
+                self.self = urlunparse(
+                    ParseResult(
+                        scheme=server_parsed.scheme,
+                        netloc=server_parsed.netloc,
+                        path=self_parsed.path,
+                        params=self_parsed.params,
+                        query=self_parsed.query,
+                        fragment=self_parsed.fragment,
+                    )
                 )
-            )
 
     def update(
         self,
@@ -1523,7 +1525,7 @@ def __init__(
         session: ResilientSession,
         raw: dict[str, Any] | None = None,
     ):
-        self.self = None
+        self.self = ""
 
         Resource.__init__(self, path, options, session, self.AGILE_BASE_URL)
         if raw:
diff --git a/tests/resources/test_issue.py b/tests/resources/test_issue.py
index f80722f7e..6b36e6275 100644
--- a/tests/resources/test_issue.py
+++ b/tests/resources/test_issue.py
@@ -347,6 +347,8 @@ def test_update_label_with_proxy(self):
 
         labelarray = ["testLabel"]
         fields = {"labels": labelarray}
+        #This simulates when your Jira server is behind a proxy
+        #The self address returned will be different from the configured server
         issue.self = f"https://foo.bar/jira/rest/api/2/issue/{issue.id}"
         issue.update(fields=fields)
         self.assertEqual(issue.fields.labels, ["testLabel"])
@@ -395,6 +397,8 @@ def test_delete_with_proxy(self):
             issuetype=self.test_manager.CI_JIRA_ISSUE,
         )
         key = issue.key
+        #This simulates when your Jira server is behind a proxy
+        #The self address returned will be different from the configured server
         issue.self = f"https://foo.bar/jira/rest/api/2/issue/{issue.id}"
         issue.delete()
         self.assertRaises(JIRAError, self.jira.issue, key)