demo · v132

Selection.isCollapsed across shadow boundary

Select text spanning the light DOM (left) and a shadow root (right) and watch the live readings. Pre-132 Chrome would lie and say isCollapsed=true; 132+ reports the truth.

document

This text is in the light DOM and continues...

selection.toString()

—

selection.isCollapsed

—

selection.anchorNode

—

selection.focusNode

—

document

see also