Google Chrome	65.0.3322.0 (Official Build) dev (64-bit)
Firmware Version	Google_Lulu.6301.136.57

I noticed that it's easy to enable sticky mode, forget it is enabled, and start typing in any text entry field. The text is entered without issue until you hit a key that happens to be a shortcut and that action is performed, moving the focus and breaking me out of text entry. I found this to be a frustrating experience. It would make more sense to me if while sticky mode was enabled, no keys passed through as normal text and an earcon were played instead. 

Steps to reproduce:

# Enable ChromeVox with ctrl + z
# Open any text entry field 
# Enable sticky mode by tapping search twice 
# Start typing in the text entry area 
Expected: Keys that are irrelevant in sticky mode such as the letter q are not passed through to the text area. For example, pressing the letter q plays an earcon and nothing is entered. 
Actual: some keys are passed through (like q) while others such as e are not. The latter is expected, for example, enabling sticky mode and pressing h should look for the next heading.