don't use get_publisher() in thread (#8856)

template.py

@@ -12,7 +12,10 @@ class RemoteTemplate(object):
 
     def get_template_content(self):
         import time, os, threading
+        from quixote import get_response, get_publisher
         CACHE_REFRESH_TIMEOUT = 300
+        self.response = get_response()
+        self.static_path = get_publisher().get_application_static_files_root_url()
         try:
             cache_filepath_mtime = os.stat(self.cache_filepath).st_mtime
         except OSError: # missing file
@@ -31,7 +34,7 @@ class RemoteTemplate(object):
 
         body = """
              [if-any bigdiv]<div id="[bigdiv]" [if-any breadcrumb]class="has-breadcrumb"[end]>[end]
-
+<!-- [breadcrumb] -->
              [if-any title]<h2>[title]</h2>[end]
              [body]
              [if-any bigdiv]</div>[end]
@@ -71,12 +74,11 @@ class RemoteTemplate(object):
 
 
         custom_breadcrumb = ''
-        from quixote import get_response, get_publisher
         from quixote.html import htmlescape
-        response = get_response()
+        response = self.response
         if hasattr(response, 'breadcrumb') and response.breadcrumb:
             s = []
-            path = get_publisher().get_application_static_files_root_url()
+            path = self.static_path
             for i, (component, label) in enumerate(response.breadcrumb[1:]):
                 if component.startswith('http:') or component.startswith('https:'):
                     s.append('<li><a href="%s">%s</a></li>' % (component, label))