Merge pull request #13236 from meeseeksmachine/auto-backport-of-pr-13235-on-7.x

Backport PR #13235 on branch 7.x (Update what's of of older IPython (forgotten))

Author: Carreau

docs/source/whatsnew/pr/enable-to-add-extra-attrs-to-iframe.rst

@@ -80,6 +80,49 @@ New Features:
  - Reword the YouTubeVideo autoplay WN :ghpull:`13147`
 
 
+Highlighted features
+--------------------
+
+
+``YouTubeVideo`` autoplay and the ability to add extra attributes to ``IFrame``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You can add any extra attributes to the ``<iframe>`` tag using the new
+``extras`` argument in the ``IFrame`` class. For example::
+
+    In [1]: from IPython.display import IFrame
+
+    In [2]: IFrame(src="src", width=300, height=300, extras=['loading="eager"'])
+
+The above cells will result in the following HTML code being displayed in a
+notebook::
+
+    <iframe
+        width="300"
+        height="300"
+        src="src"
+        frameborder="0"
+        allowfullscreen
+        loading="eager"
+    ></iframe>
+
+Related to the above, the ``YouTubeVideo`` class now takes an
+``allow_autoplay`` flag, which sets up the iframe of the embedded YouTube video
+such that it allows autoplay.
+
+.. note::
+    Whether this works depends on the autoplay policy of the browser rendering
+    the HTML allowing it. It also could get blocked by some browser extensions.
+
+Try it out!
+::
+
+    In [1]: from IPython.display import YouTubeVideo
+
+    In [2]: YouTubeVideo("dQw4w9WgXcQ", allow_autoplay=True)
+
+
+
 Thanks
 ------
 
@@ -137,6 +180,16 @@ Of particular interest are the following Pull-requests:
    :ghpull:`13056`
  - Make Ipython.utils.timing work with jupyterlite :ghpull:`13050`.
 
+Pastebin magic expiry days option
+---------------------------------
+
+The Pastebin magic now has ``-e`` option to determine 
+the number of days for paste expiration. For example
+the paste that created with ``%pastebin -e 20 1`` magic will
+be available for next 20 days.
+
+
+
 
 
 Thanks