diff --git a/src/sage/plot/plot3d/base.pyx b/src/sage/plot/plot3d/base.pyx
index 222337345a7..e0c11914b8b 100644
--- a/src/sage/plot/plot3d/base.pyx
+++ b/src/sage/plot/plot3d/base.pyx
@@ -419,9 +419,9 @@ cdef class Graphics3d(SageObject):
             html = f.read()
 
         html = html.replace('SAGE_SCRIPTS', scripts)
-        options = dict((key, options[key]) for key in
+        js_options = dict((key, options[key]) for key in
             ['aspect_ratio', 'axes', 'axes_labels', 'decimals', 'frame'])
-        html = html.replace('SAGE_OPTIONS', json.dumps(options))
+        html = html.replace('SAGE_OPTIONS', json.dumps(js_options))
         html = html.replace('SAGE_BOUNDS', bounds)
         html = html.replace('SAGE_LIGHTS', lights)
         html = html.replace('SAGE_AMBIENT', ambient)
diff --git a/src/sage/repl/rich_output/backend_ipython.py b/src/sage/repl/rich_output/backend_ipython.py
index 52518bda39c..9323fb76d2c 100644
--- a/src/sage/repl/rich_output/backend_ipython.py
+++ b/src/sage/repl/rich_output/backend_ipython.py
@@ -588,7 +588,7 @@ def threejs_offline_scripts(self):
             sage: from sage.repl.rich_output.backend_ipython import BackendIPythonNotebook
             sage: backend = BackendIPythonNotebook()
             sage: backend.threejs_offline_scripts()
-            '\n<script src="/nbextensions/threejs/three.min.js"></script>...'
+            '\n<script src="/nbextensions/threejs/three.min...<\\/script>...'
         """
         from sage.repl.rich_output import get_display_manager
         CDN_scripts = get_display_manager().threejs_scripts(online=True)
@@ -598,4 +598,4 @@ def threejs_offline_scripts(self):
 <script>
   if ( !window.THREE ) document.write('{}');
 </script>
-        """.format(CDN_scripts)
+        """.format(CDN_scripts.replace('</script>', r'<\/script>'))
diff --git a/src/sage/repl/rich_output/display_manager.py b/src/sage/repl/rich_output/display_manager.py
index 88d443ee876..f48527df8f9 100644
--- a/src/sage/repl/rich_output/display_manager.py
+++ b/src/sage/repl/rich_output/display_manager.py
@@ -715,7 +715,7 @@ def graphics_from_save(self, save_function, save_kwds,
 
     def threejs_scripts(self, online):
         """
-        Return three.js script tags for the current backend.
+        Return Three.js script tags for the current backend.
 
         INPUT:
 
@@ -728,7 +728,7 @@ def threejs_scripts(self, online):
         .. NOTE::
         
             This base method handles ``online=True`` case only, serving CDN
-            script tags. Location of scripts for off-line usage is
+            script tags. Location of scripts for offline usage is
             backend-specific.
 
         EXAMPLES::