allow iframe embedded

Author: hephaex

r-base/service-defs/jupyter.json

@@ -7,6 +7,7 @@
           "c.NotebookApp.allow_root = True\n",
           "c.NotebookApp.ip = \"0.0.0.0\"\n",
           "c.NotebookApp.port = {ports[0]}\n",
+	  "c.ContentsManager.files_handler_class = None\n",
           "c.NotebookApp.token = \"\"\n",
           "c.FileContentsManager.delete_to_trash = False\n"
         ]

r-base/service-defs/jupyterlab.json

@@ -8,7 +8,9 @@
           "c.NotebookApp.ip = \"0.0.0.0\"\n",
           "c.NotebookApp.port = {ports[0]}\n",
           "c.NotebookApp.token = \"\"\n",
-          "c.FileContentsManager.delete_to_trash = False\n"
+          "c.FileContentsManager.delete_to_trash = False\n",
+          "c.NotebookApp.tornado_settings = {{'headers': {{'Content-Security-Policy': \"frame-ancestors * 'self' \"}}}}\n",
+          "c.JupyterHub.tornado_settings = {{'headers': {{'Content-Security-Policy': \"frame-ancestors * 'self' \"}}}}\n"
         ]
       },
       "ref": "jupyter_cfg"