chrome/browser/resources/chromeos/chromevox/cvox2/background/live_regions.js - Issue 1514483006: Wrap new API in a try-catch.

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Unified Diff: chrome/browser/resources/chromeos/chromevox/cvox2/background/live_regions.js

Issue 1514483006: Wrap new API in a try-catch. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 5 years ago

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Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/live_regions.js

diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/live_regions.js b/chrome/browser/resources/chromeos/chromevox/cvox2/background/live_regions.js

index 42ed81c6ecda49ee7baa36469546fd4ec998cbe8..0269a5da1fa647a452088549c6bf0471511defcd 100644

--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/live_regions.js

+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/live_regions.js

@@ -42,8 +42,12 @@ LiveRegions = function(chromeVoxState) {

this.liveRegionNodeSet_ = new WeakSet();

- chrome.automation.addTreeChangeObserver(

- 'liveRegionTreeChanges', this.onTreeChange.bind(this));

+ // API only exists >= m49. Prevent us from crashing.

+ try {

+ chrome.automation.addTreeChangeObserver(

+ 'liveRegionTreeChanges', this.onTreeChange.bind(this));

+ } catch (e) {

+ }

};

/**

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