polymer_app_layout_template
polymer_app_layout
MutationRecord
attributeName
attributeName
polymer_app_layout_template
polymer_app_layout
MutationRecord
attributeName
property
attributeName
polymer_app_layout_template
polymer_app_layout
MutationRecord
Properties
addedNodes
attributeName
attributeNamespace
nextSibling
oldValue
previousSibling
removedNodes
target
type
String
attributeName
read-only
Not documented.