I'm encountering this same issue after using vulcanize to build my component tree into a single file.
https://www.dropbox.com/s/p7owem5ya5ruu6b/Screenshot%202014-12-10%2016.35.59.png?dl=0 That error happens at the top, and then I get a lot of Uncaught TypeErrors (although I think these are a side effect of the first issue, because the first issue breaks the Polymer object). On Wednesday, November 5, 2014 2:04:30 PM UTC-5, [email protected] wrote: > > Hello All, > > Can someone please explain why the following error occurs and what it > means? > > Uncaught HierarchyRequestError: Failed to execute 'appendChild' on 'Node': > Nodes of type 'HTML' may not be inserted inside nodes of type '#document' > > I am not sure I am able to reproduce it but it occurs from time to time, > usually when I import more than one custom element. It's extremely hard > giving exact context since I am working on integrating polymer's paper/core > elements for our in-house widgets. Broadly speaking what are the cases that > I would see this error? Any kind of help is appreciated. Thank you. > > Regards, > Raja > Follow Polymer on Google+: plus.google.com/107187849809354688692 --- You received this message because you are subscribed to the Google Groups "Polymer" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/polymer-dev/e1fb19f7-bd77-413c-b357-a56de9d61006%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
