tie in the normal courseware link url rewriting in capa module since that presents HTML via an Ajax callbacks and not via module_render.py

common/lib/xmodule/xmodule/capa_module.py

@@ -534,8 +534,16 @@ class CapaModule(CapaFields, XModule):
                 id=self.location.html_id(), ajax_url=self.system.ajax_url
             ) + html + "</div>"
 
-        # now do the substitutions which are filesystem based, e.g. '/static/' prefixes
-        return self.system.replace_urls(html)
+        # now do all the substitutions which the LMS module_render normally does, but
+        # we need to do here explicitly since we can get called for our HTML via AJAX
+        html = self.system.replace_urls(html)
+        if self.system.replace_course_urls:
+            html = self.system.replace_course_urls(html)
+
+        if self.system.replace_jump_to_id_urls:
+            html = self.system.replace_jump_to_id_urls(html)
+
+        return html
 
     def handle_ajax(self, dispatch, data):
         """

common/lib/xmodule/xmodule/x_module.py

@@ -902,6 +902,8 @@ class ModuleSystem(Runtime):
                  s3_interface=None,
                  cache=None,
                  can_execute_unsafe_code=None,
+                 replace_course_urls=None,
+                 replace_jump_to_id_urls=None
     ):
         '''
         Create a closure around the system environment.
@@ -978,6 +980,8 @@ class ModuleSystem(Runtime):
 
         self.cache = cache or DoNothingCache()
         self.can_execute_unsafe_code = can_execute_unsafe_code or (lambda: False)
+        self.replace_course_urls = replace_course_urls
+        self.replace_jump_to_id_urls = replace_jump_to_id_urls
 
     def get(self, attr):
         '''	provide uniform access to attributes (like etree).'''

lms/djangoapps/courseware/module_render.py

@@ -349,6 +349,15 @@ def get_module_for_descriptor_internal(user, descriptor, model_data_cache, cours
             data_directory=getattr(descriptor, 'data_dir', None),
             course_namespace=descriptor.location._replace(category=None, name=None),
         ),
+        replace_course_urls=partial(
+            static_replace.replace_course_urls,
+            course_id=course_id
+        ),
+        replace_jump_to_id_urls=partial(
+            static_replace.replace_jump_to_id_urls,
+            course_id=course_id,
+            jump_to_id_base_url=reverse('jump_to_id', kwargs={'course_id': course_id, 'module_id': ''})
+        ),
         node_path=settings.NODE_PATH,
         xblock_model_data=xblock_model_data,
         publish=publish,