<div dir="ltr">Thanks for the hint... I did not know about that hard reset. However, this is looking like an error. After a reset, in the console:<br><br>View creation failed<br>Backbone.Model.extend.constructor {widget_manager: WidgetManager, _buffered_state_diff: Object, pending_msgs: 0, msg_buffer: null, key_value_lock: null…}<br>
manager.js:83<br><br>Exception in Comm callback<br>TypeError {stack: "TypeError: Cannot read property '$el' of null↵ …min.js?v=ccd0edd113b78697e04fb5c1b519a5cd:4:5488)", message: "Cannot read property '$el' of null"}<br>
<br>message: "Cannot read property '$el' of null"<br>stack: "TypeError: Cannot read property '$el' of null↵ at WidgetManager._handle_display_view (<a href="http://127.0.0.1:8888/static/widgets/js/manager.js:97:58)">http://127.0.0.1:8888/static/widgets/js/manager.js:97:58)</a>↵ at WidgetManager.display_view (<a href="http://127.0.0.1:8888/static/widgets/js/manager.js:87:26)">http://127.0.0.1:8888/static/widgets/js/manager.js:87:26)</a>↵ at Backbone.Model.extend._handle_comm_msg (<a href="http://127.0.0.1:8888/static/widgets/js/widget.js:85:41)">http://127.0.0.1:8888/static/widgets/js/widget.js:85:41)</a>↵ at x.isFunction.i (<a href="http://127.0.0.1:8888/static/components/jquery/jquery.min.js?v=ccd0edd113b78697e04fb5c1b519a5cd:4:5488)">http://127.0.0.1:8888/static/components/jquery/jquery.min.js?v=ccd0edd113b78697e04fb5c1b519a5cd:4:5488)</a>↵ at Comm._maybe_callback (<a href="http://127.0.0.1:8888/static/services/kernels/js/comm.js?v=f6acfac4110c05a2d4985876fb49765a:177:17)">http://127.0.0.1:8888/static/services/kernels/js/comm.js?v=f6acfac4110c05a2d4985876fb49765a:177:17)</a>↵ at Comm.handle_msg (<a href="http://127.0.0.1:8888/static/services/kernels/js/comm.js?v=f6acfac4110c05a2d4985876fb49765a:185:14)">http://127.0.0.1:8888/static/services/kernels/js/comm.js?v=f6acfac4110c05a2d4985876fb49765a:185:14)</a>↵ at CommManager.comm_msg (<a href="http://127.0.0.1:8888/static/services/kernels/js/comm.js?v=f6acfac4110c05a2d4985876fb49765a:116:18)">http://127.0.0.1:8888/static/services/kernels/js/comm.js?v=f6acfac4110c05a2d4985876fb49765a:116:18)</a>↵ at x.isFunction.i (<a href="http://127.0.0.1:8888/static/components/jquery/jquery.min.js?v=ccd0edd113b78697e04fb5c1b519a5cd:4:5488)">http://127.0.0.1:8888/static/components/jquery/jquery.min.js?v=ccd0edd113b78697e04fb5c1b519a5cd:4:5488)</a>↵ at Kernel._handle_iopub_message (<a href="http://127.0.0.1:8888/static/services/kernels/js/kernel.js?v=6af87c42924701bcbf66ba75f4975cec:573:13)">http://127.0.0.1:8888/static/services/kernels/js/kernel.js?v=6af87c42924701bcbf66ba75f4975cec:573:13)</a>↵ at WebSocket.x.isFunction.i (<a href="http://127.0.0.1:8888/static/components/jquery/jquery.min.js?v=ccd0edd113b78697e04fb5c1b519a5cd:4:5488">http://127.0.0.1:8888/static/components/jquery/jquery.min.js?v=ccd0edd113b78697e04fb5c1b519a5cd:4:5488</a>)"<br>
__proto__: Error<div class="gmail_extra"><br></div><div class="gmail_extra">-Doug<br><br><div class="gmail_quote">On Wed, Feb 26, 2014 at 8:32 PM, Sylvain Corlay <span dir="ltr"><<a href="mailto:sylvain.corlay@gmail.com" target="_blank">sylvain.corlay@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Doug, <div>I have experienced this kind of problems with widgets not being rendered because of caching issues of Chrome. Even after deleting the cache, some javascript files are still not updated to the last version. </div>
<div>The fix for me is to </div><div> -open the developer tools (Crtl + Shift + J)</div><div> -right-click on the reload button of the page</div><div> -choose <u>"Empty Cache and Hard Reload</u>". </div><div>Another solution which only works when the developer tools are kept open is to check "<u>Disable cache (while DevTools is open)</u>" in the developer tools options. <br>
</div><div>Best, <span class="HOEnZb"><font color="#888888"><br>Sylvain</font></span></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Feb 26, 2014 at 8:02 PM, Doug Blank <span dir="ltr"><<a href="mailto:doug.blank@gmail.com" target="_blank">doug.blank@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div>On Wed, Feb 26, 2014 at 6:13 PM, Jason Grout <span dir="ltr"><<a href="mailto:jason-sage@creativetrax.com" target="_blank">jason-sage@creativetrax.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>On 2/26/14 4:25 PM, Doug Blank wrote:<br>
> Jason, thank you very much for sharing this!<br>
><br>
> So, I am testing this with IPython 2.0.0-dev master, and after three<br>
> clicks, it no longer updates the imageurl field. The picture continues<br>
> to be updated in the view, both live, and when the picture is taken. But<br>
> it appears that the data is no longer being sent to the kernel.<br>
><br>
> I have a feeling that this is because the frontend is not receiving a<br>
> proper message back from the kernel (because auto throttling kicks in).<br>
> This is my guess, anyway.<br>
><br>
> Can you verify that you are also having this issue, and perhaps suggest<br>
> what could be the matter.<br>
<br>
</div>I'm running pretty close to master, and don't see it with this updated<br>
version:<br>
<br>
<a href="http://nbviewer.ipython.org/gist/jasongrout/9210458" target="_blank">http://nbviewer.ipython.org/gist/jasongrout/9210458</a><br>
<br>
(I didn't double-check the version I sent out earlier just now...it's<br>
possible that one of the changes I made in the sagecell tweaks included<br>
in the above version fixed the issue you are having)<br>
<div><div><br></div></div></blockquote><div><br></div></div><div>I'm seeing strange behavior in the latest pull (from today's changes in master) with all of the custom widgets. For example, the widgets in "Part 6 Custom Widgets" in the examples are not rendering anymore.</div>
<div><br></div><div>Any one else seeing that? Perhaps I need to recreate my profiles? The Camera widget no longer shows as well.</div><span><font color="#888888"><div><br></div><div>-Doug</div></font></span><div>
<div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div>
Thanks,<br>
<br>
Jason<br>
<br>
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