use existing quote_js function for #15316

html/extra-networks-copy-path-button.html

 <div class="copy-path-button card-button"
     title="Copy path to clipboard"
-    onclick="extraNetworksCopyCardPath(event, '{filename}')"
-    data-clipboard-text="{filename}">
+    onclick='extraNetworksCopyCardPath(event, {filename})'
+    data-clipboard-text={filename}>
 </div>
\ No newline at end of file

modules/ui_extra_networks.py

@@ -10,7 +10,6 @@ from modules.images import read_info_from_image, save_image_with_geninfo
 import gradio as gr
 import json
 import html
-import re
 from fastapi.exceptions import HTTPException
 
 from modules.infotext_utils import image_from_url_text
@@ -152,6 +151,7 @@ def quote_js(s):
     s = s.replace('"', '\\"')
     return f'"{s}"'
 
+
 class ExtraNetworksPage:
     def __init__(self, title):
         self.title = title
@@ -239,7 +239,7 @@ class ExtraNetworksPage:
             )
             onclick = html.escape(onclick)
 
-        btn_copy_path = self.btn_copy_path_tpl.format(**{"filename": re.sub(r"[\\\"']", r"\\\g<0>", item["filename"])})
+        btn_copy_path = self.btn_copy_path_tpl.format(**{"filename": quote_js(item["filename"])})
         btn_metadata = ""
         metadata = item.get("metadata")
         if metadata: