From 293b16ba1e10d18467166cfcf8c98d8018712eb4 Mon Sep 17 00:00:00 2001
From: mac <2099930591@qq.com>
Date: Sat, 17 May 2025 13:08:03 +0800
Subject: [PATCH 1/4] fix the external URL detected as local link bug

---
 packages/gatsby-link/src/is-local-link.js | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/packages/gatsby-link/src/is-local-link.js b/packages/gatsby-link/src/is-local-link.js
index b97c7a1915f5f..030718fd5af7f 100644
--- a/packages/gatsby-link/src/is-local-link.js
+++ b/packages/gatsby-link/src/is-local-link.js
@@ -2,12 +2,12 @@
 const ABSOLUTE_URL_REGEX = /^[a-zA-Z][a-zA-Z\d+\-.]*?:/
 const isAbsolute = path => ABSOLUTE_URL_REGEX.test(path)
 
-export const isLocalLink = path => {
-  if (typeof path !== `string`) {
-    return undefined
-    // TODO(v5): Re-Add TypeError
-    // throw new TypeError(`Expected a \`string\`, got \`${typeof path}\``)
+export function isLocalLink(path) {
+  // Handle null/undefined case
+  if (!path) throw new TypeError(`Expected a \`string\`, got \`${typeof path}\``)
+  if (/^(?:[a-z+]+:)?\/\//i.test(path)) {
+    return false
   }
-
-  return !isAbsolute(path)
+  // If it's not a protocol-based URL, it's likely a local link
+  return true
 }

From 6dad697a3b0b80c48755628be44426d86aadf34a Mon Sep 17 00:00:00 2001
From: mac <2099930591@qq.com>
Date: Sat, 17 May 2025 13:36:44 +0800
Subject: [PATCH 2/4] fix the external URL detected as local link bug

---
 packages/gatsby-link/src/is-local-link.js | 26 +++++++++++++++--------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/packages/gatsby-link/src/is-local-link.js b/packages/gatsby-link/src/is-local-link.js
index 030718fd5af7f..b53d6f1a98213 100644
--- a/packages/gatsby-link/src/is-local-link.js
+++ b/packages/gatsby-link/src/is-local-link.js
@@ -1,13 +1,21 @@
-// Copied from https://github.com/sindresorhus/is-absolute-url/blob/3ab19cc2e599a03ea691bcb8a4c09fa3ebb5da4f/index.js
-const ABSOLUTE_URL_REGEX = /^[a-zA-Z][a-zA-Z\d+\-.]*?:/
-const isAbsolute = path => ABSOLUTE_URL_REGEX.test(path)
+// Recognize absolute URLs like https://, http://, mailto:, etc.
+const ABSOLUTE_URL_REGEX = /^[a-zA-Z][a-zA-Z\d+\-.]*:\/\//;
 
+/**
+ * Check if a path is an absolute URL (external).
+ */
+function isAbsolute(path) {
+  return ABSOLUTE_URL_REGEX.test(path);
+}
+
+/**
+ * Check if a path is a local (internal) link.
+ * Returns true if the path is relative to the site, false otherwise.
+ */
 export function isLocalLink(path) {
-  // Handle null/undefined case
-  if (!path) throw new TypeError(`Expected a \`string\`, got \`${typeof path}\``)
-  if (/^(?:[a-z+]+:)?\/\//i.test(path)) {
-    return false
+  if (typeof path !== 'string') {
+    throw new TypeError(`Expected a string, got ${typeof path}`);
   }
-  // If it's not a protocol-based URL, it's likely a local link
-  return true
+
+  return !isAbsolute(path);
 }

From feae011125af709453fc6cfcb4d763f4f58f02f6 Mon Sep 17 00:00:00 2001
From: mac <2099930591@qq.com>
Date: Sat, 17 May 2025 13:40:34 +0800
Subject: [PATCH 3/4] fix the external URL detected as local link bug

---
 packages/gatsby-link/src/is-local-link.js | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/packages/gatsby-link/src/is-local-link.js b/packages/gatsby-link/src/is-local-link.js
index b53d6f1a98213..e5d2d93d2afbb 100644
--- a/packages/gatsby-link/src/is-local-link.js
+++ b/packages/gatsby-link/src/is-local-link.js
@@ -1,21 +1,13 @@
-// Recognize absolute URLs like https://, http://, mailto:, etc.
-const ABSOLUTE_URL_REGEX = /^[a-zA-Z][a-zA-Z\d+\-.]*:\/\//;
+const ABSOLUTE_URL_REGEX = /^[a-zA-Z][a-zA-Z\d+\-.]*:\/\//
 
-/**
- * Check if a path is an absolute URL (external).
- */
 function isAbsolute(path) {
-  return ABSOLUTE_URL_REGEX.test(path);
+  return ABSOLUTE_URL_REGEX.test(path)
 }
 
-/**
- * Check if a path is a local (internal) link.
- * Returns true if the path is relative to the site, false otherwise.
- */
 export function isLocalLink(path) {
-  if (typeof path !== 'string') {
-    throw new TypeError(`Expected a string, got ${typeof path}`);
+  if (typeof path !== `string`) {
+    throw new TypeError(`Expected a string, got ${typeof path}`)
   }
 
-  return !isAbsolute(path);
+  return !isAbsolute(path)
 }

From 8446a32295ac618bfc0722ebb7ee875897154007 Mon Sep 17 00:00:00 2001
From: mac <2099930591@qq.com>
Date: Sat, 17 May 2025 22:10:47 +0800
Subject: [PATCH 4/4] fix the external URL detected as local link bug

---
 packages/gatsby-link/src/is-local-link.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/gatsby-link/src/is-local-link.js b/packages/gatsby-link/src/is-local-link.js
index e5d2d93d2afbb..6ac72e3740332 100644
--- a/packages/gatsby-link/src/is-local-link.js
+++ b/packages/gatsby-link/src/is-local-link.js
@@ -6,8 +6,8 @@ function isAbsolute(path) {
 
 export function isLocalLink(path) {
   if (typeof path !== `string`) {
-    throw new TypeError(`Expected a string, got ${typeof path}`)
+    return undefined
   }
-
+  if (!path) return false
   return !isAbsolute(path)
 }