** (dwb:3429): WARNING **: The set_id method on WebKitDOMHTMLElement is deprecated. Use the one in WebKitDOMElement instead.

** (dwb:3429): WARNING **: The set_id method on WebKitDOMHTMLElement is deprecated. Use the one in WebKitDOMElement instead.

(dwb:3429): GLib-GObject-WARNING **: invalid unclassed pointer in cast to 'WebKitDOMNode'

** (dwb:3429): CRITICAL **: WebKitDOMNode* webkit_dom_node_get_parent_node(WebKitDOMNode*): assertion 'WEBKIT_DOM_IS_NODE(self)' failed

(dwb:3429): GLib-GObject-WARNING **: invalid unclassed pointer in cast to 'WebKitDOMNode'

** (dwb:3429): CRITICAL **: WebKitDOMNode* webkit_dom_node_get_parent_node(WebKitDOMNode*): assertion 'WEBKIT_DOM_IS_NODE(self)' failed

** (dwb:3429): WARNING **: The set_id method on WebKitDOMHTMLElement is deprecated. Use the one in WebKitDOMElement instead.

(dwb:3429): GLib-GObject-WARNING **: invalid unclassed pointer in cast to 'WebKitDOMNode'

** (dwb:3429): CRITICAL **: WebKitDOMNode* webkit_dom_node_get_parent_node(WebKitDOMNode*): assertion 'WEBKIT_DOM_IS_NODE(self)' failed

(dwb:3429): GLib-GObject-WARNING **: invalid unclassed pointer in cast to 'WebKitDOMNode'

** (dwb:3429): CRITICAL **: WebKitDOMNode* webkit_dom_node_get_parent_node(WebKitDOMNode*): assertion 'WEBKIT_DOM_IS_NODE(self)' failed

** (dwb:3429): WARNING **: The set_id method on WebKitDOMHTMLElement is deprecated. Use the one in WebKitDOMElement instead.

(dwb:3429): GLib-GObject-WARNING **: invalid unclassed pointer in cast to 'WebKitDOMNode'

** (dwb:3429): CRITICAL **: WebKitDOMNode* webkit_dom_node_get_parent_node(WebKitDOMNode*): assertion 'WEBKIT_DOM_IS_NODE(self)' failed
Received SIGSEGV, trying to clean up.

Last 14 stack frames: 

 14: dwb(+0x44188) [0x7f1102882188]
 13: dwb(+0x5678f) [0x7f110289478f]
 12: /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7f10fdb99340]
 11: /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_type_check_instance_cast+0x1c) [0x7f10fec5734c]
 10: dwb(+0x520b9) [0x7f11028900b9]
  9: dwb(+0x544fd) [0x7f11028924fd]
  8: dwb(+0x6ef7f) [0x7f11028acf7f]
  7: dwb(+0x68ea1) [0x7f11028a6ea1]
  6: dwb(+0x46950) [0x7f1102884950]
  5: dwb(+0x46e8e) [0x7f1102884e8e]
  4: /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0(g_application_run+0x11b) [0x7f10fef18acb]
  3: dwb(+0x4715a) [0x7f110288515a]
  2: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f10fd7e5ec5]
  1: dwb(+0x44265) [0x7f1102882265]