Exceptions not visible when using %%cache

[oldnaari]

The exceptions raised in a cell with %%cache, are not displayed

In[0]:
%load_ext ipycache
Out[0] :
/home/daniilhayrapetyan/.virtualenvs/test/lib/python3.6/site-packages/IPython/config.py:13: ShimWarning: The `IPython.config` package has been deprecated since IPython 4.0. You should import from traitlets.config instead.
  "You should import from traitlets.config instead.", ShimWarning)
/home/daniilhayrapetyan/.virtualenvs/test/lib/python3.6/site-packages/ipycache.py:17: UserWarning: IPython.utils.traitlets has moved to a top-level traitlets package.
  from IPython.utils.traitlets import Unicode
In[1] :
%%cache _delete_me.pkl
raise Exception
Out[1] :
[Saved variables '' to file 'home/daniilhayrapetyan/.../_delete_me.pkl'.]

I am using Jupyter Lab:
Here are the versions:

• Python: 3.6.7 (default, Oct 22 2018, 11:32:17) [GCC 8.2.0]
• ipycache: 0.1.4
• jupyterlab: 1.1.1

Also if using tqdm_notebook from tqdm, the widget is not displayed. Just thought that this fact will be helpful for debuging the issue.