(tl;dr - yes. However Polymer 2.0 is not and is an easy upgrade.) I am trying to migrate an old front-end code base away from polymer 1.11.3 (webcomponentsjs 0.
robotc
shared-resource
vue-treeselect
python
nsprintinfo
stretchdibits
k3sup
sonarqube-api
facebook-pixel
peg
android-slices
android-picture-in-picture
binarywriter
django-pyodbc-azure
flask-security
rendering
data-wrangling
velo
formsauthenticationticket
lifetime
orders
dbd
angular-formbuilder
lucene-boosting
rex
wxpython
spring-java-config
rdf-xml
rectangles
google-query-language