diff --git a/qutebrowser/browser/webengine/webenginetab.py b/qutebrowser/browser/webengine/webenginetab.py
index 41ddc6c80..bc9c5cc18 100644
--- a/qutebrowser/browser/webengine/webenginetab.py
+++ b/qutebrowser/browser/webengine/webenginetab.py
@@ -381,7 +381,7 @@ class WebEngineTab(browsertab.AbstractTab):
 
     def __init__(self, win_id, mode_manager, parent=None):
         super().__init__(win_id)
-        widget = webview.WebEngineView(tabdata=self.data)
+        widget = webview.WebEngineView(tabdata=self.data, win_id=win_id)
         self.history = WebEngineHistory(self)
         self.scroller = WebEngineScroller(self, parent=self)
         self.caret = WebEngineCaret(win_id=win_id, mode_manager=mode_manager,
diff --git a/qutebrowser/browser/webengine/webview.py b/qutebrowser/browser/webengine/webview.py
index 451a493a0..5c8d863e4 100644
--- a/qutebrowser/browser/webengine/webview.py
+++ b/qutebrowser/browser/webengine/webview.py
@@ -26,17 +26,64 @@ from PyQt5.QtWebEngineWidgets import QWebEngineView, QWebEnginePage
 # pylint: enable=no-name-in-module,import-error,useless-suppression
 
 from qutebrowser.config import config
-from qutebrowser.utils import log, debug, usertypes
+from qutebrowser.utils import log, debug, usertypes, objreg
 
 
 class WebEngineView(QWebEngineView):
 
     """Custom QWebEngineView subclass with qutebrowser-specific features."""
 
-    def __init__(self, tabdata, parent=None):
+    def __init__(self, tabdata, win_id, parent=None):
         super().__init__(parent)
+        self._win_id = win_id
         self.setPage(WebEnginePage(tabdata, parent=self))
 
+    def createWindow(self, wintype):
+        """Called by Qt when a page wants to create a new window.
+
+        This function is called from the createWindow() method of the
+        associated QWebEnginePage, each time the page wants to create a new
+        window of the given type. This might be the result, for example, of a
+        JavaScript request to open a document in a new window.
+
+        Args:
+            wintype: This enum describes the types of window that can be
+                     created by the createWindow() function.
+
+                     QWebEnginePage::WebBrowserWindow:
+                         A complete web browser window.
+                     QWebEnginePage::WebBrowserTab:
+                         A web browser tab.
+                     QWebEnginePage::WebDialog:
+                         A window without decoration.
+                     QWebEnginePage::WebBrowserBackgroundTab:
+                         A web browser tab without hiding the current visible
+                         WebEngineView. (Added in Qt 5.7)
+
+        Return:
+            The new QWebEngineView object.
+        """
+        background = False
+        if wintype == QWebEnginePage.WebBrowserWindow:
+            log.webview.warning("WebBrowserWindow requested, but we don't "
+                                "support that!")
+        elif wintype == QWebEnginePage.WebBrowserTab:
+            pass
+        elif wintype == QWebEnginePage.WebDialog:
+            log.webview.warning("WebDialog requested, but we don't support "
+                                "that!")
+        elif (hasattr(QWebEnginePage, 'WebBrowserBackgroundTab') and
+              wintype == QWebEnginePage.WebBrowserBackgroundTab):
+            background = True
+        else:
+            raise ValueError("Invalid wintype {}".format(debug.qenum_key(
+                QWebEnginePage, wintype)))
+
+        tabbed_browser = objreg.get('tabbed-browser', scope='window',
+                                    window=self._win_id)
+        # pylint: disable=protected-access
+        return tabbed_browser.tabopen(background=background)._widget
+
 
 class WebEnginePage(QWebEnginePage):
 
@@ -74,11 +121,6 @@ class WebEnginePage(QWebEnginePage):
         logger = level_to_logger[level]
         logger(logstring)
 
-    def createWindow(self, _typ):
-        """Handle new windows via JS."""
-        log.stub()
-        return None
-
     def acceptNavigationRequest(self,
                                 url: QUrl,
                                 typ: QWebEnginePage.NavigationType,
diff --git a/tests/end2end/data/javascript/window_open.html b/tests/end2end/data/javascript/window_open.html
new file mode 100644
index 000000000..974f821f0
--- /dev/null
+++ b/tests/end2end/data/javascript/window_open.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+<script type="text/javascript">
+    function open_modal() {
+        if (window.showModalDialog) {
+            window.showModalDialog();
+        } else {
+            window.open('', 'window', 'modal');
+        }
+    }
+</script>
+</head>
+
+<body>
+
+<button onclick="window.open('', 'window')" id="open-normal">normal</button>
+<button onclick="open_modal()" id="open-modal">modal</button>
+
+</body>
+</html>
diff --git a/tests/end2end/features/hints.feature b/tests/end2end/features/hints.feature
index 683defd8c..420ec12d1 100644
--- a/tests/end2end/features/hints.feature
+++ b/tests/end2end/features/hints.feature
@@ -19,7 +19,6 @@ Feature: Using hints
 
     ### Opening in current or new tab
 
-    @qtwebengine_todo: createWindow is not implemented yet
     Scenario: Following a hint and force to open in current tab.
         When I open data/hints/link_blank.html
         And I hint with args "links current" and follow a
@@ -27,7 +26,6 @@ Feature: Using hints
         Then the following tabs should be open:
             - data/hello.txt (active)
 
-    @qtwebengine_todo: createWindow is not implemented yet
     Scenario: Following a hint and allow to open in new tab.
         When I open data/hints/link_blank.html
         And I hint with args "links normal" and follow a
@@ -36,7 +34,6 @@ Feature: Using hints
             - data/hints/link_blank.html
             - data/hello.txt (active)
 
-    @qtwebengine_todo: createWindow is not implemented yet
     Scenario: Following a hint to link with sub-element and force to open in current tab.
         When I open data/hints/link_span.html
         And I run :tab-close
@@ -154,13 +151,11 @@ Feature: Using hints
         And I hint wht args "links normal" and follow a
         Then "navigation request: url http://localhost:*/data/hello2.txt, type NavigationTypeLinkClicked, *" should be logged
 
-    @qtwebengine_todo: createWindow is not implemented yet
     Scenario: Opening a link inside a specific iframe
         When I open data/hints/iframe_target.html
         And I hint with args "links normal" and follow a
         Then "navigation request: url http://localhost:*/data/hello.txt, type NavigationTypeLinkClicked, *" should be logged
 
-    @qtwebengine_todo: createWindow is not implemented yet
     Scenario: Opening a link with specific target frame in a new tab
         When I open data/hints/iframe_target.html
         And I hint with args "links tab" and follow a
diff --git a/tests/end2end/features/javascript.feature b/tests/end2end/features/javascript.feature
index b95e4e7d7..bb34db70b 100644
--- a/tests/end2end/features/javascript.feature
+++ b/tests/end2end/features/javascript.feature
@@ -9,7 +9,6 @@ Feature: Javascript stuff
 
     # https://github.com/The-Compiler/qutebrowser/issues/906
 
-    @qtwebengine_todo: createWindow is not implemented yet
     Scenario: Closing a JS window twice (issue 906)
         When I open about:blank
         And I open data/javascript/issue906.html in a new tab
diff --git a/tests/end2end/features/misc.feature b/tests/end2end/features/misc.feature
index 493e6e8af..9ae612f87 100644
--- a/tests/end2end/features/misc.feature
+++ b/tests/end2end/features/misc.feature
@@ -551,7 +551,6 @@ Feature: Various utility commands.
         Then the page should not be scrolled
         And the error "prompt-accept: This command is only allowed in prompt/yesno mode." should be shown
 
-    @qtwebengine_todo: createWindow is not implemented yet
     Scenario: :repeat-command with mode-switching command
         Given I open data/hints/link_blank.html
         And I run :tab-only