Repro:

1. Visit google.com/flights
2. Tab to the "Where to" text box
3. Type any character

Get this stack trace below. This is interfering with some live regions on the page that are necessary for the page to work correctly.

chromeVox2ChromeBackgroundScript.js:775 Missing role info for undefined
(anonymous)	@	chromeVox2ChromeBackgroundScript.js:775
format_	@	chromeVox2ChromeBackgroundScript.js:749
node_	@	chromeVox2ChromeBackgroundScript.js:847
(anonymous)	@	chromeVox2ChromeBackgroundScript.js:823
range_	@	chromeVox2ChromeBackgroundScript.js:827
render_	@	chromeVox2ChromeBackgroundScript.js:748
withSpeech	@	chromeVox2ChromeBackgroundScript.js:731
outputLiveRegionChangeForNode_	@	chromeVox2ChromeBackgroundScript.js:1835
outputLiveRegionChange_	@	chromeVox2ChromeBackgroundScript.js:1832
(anonymous)	@	chromeVox2ChromeBackgroundScript.js:1829
processQueuedTreeChanges_	@	chromeVox2ChromeBackgroundScript.js:1829
onTreeChange	@	chromeVox2ChromeBackgroundScript.js:1829
(anonymous)	@	extensions::automation:259
EventImpl.dispatchToListener	@	extensions::event_bindings:403
publicClassPrototype.(anonymous function)	@	extensions::utils:138
EventImpl.dispatch_	@	extensions::event_bindings:387
dispatchArgs	@	extensions::event_bindings:260
dispatchEvent	@	extensions::event_bindings:269