From 6d677f0ec531fc8caea487e916884b14a049891a Mon Sep 17 00:00:00 2001 From: Florian Dold Date: Thu, 17 Dec 2015 13:37:57 +0100 Subject: [PATCH] Explain purpose of timer thread. --- extension/background/timerThread.js | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/extension/background/timerThread.js b/extension/background/timerThread.js index a42b0edf6..7ac66a711 100644 --- a/extension/background/timerThread.js +++ b/extension/background/timerThread.js @@ -1,3 +1,10 @@ +/** + * This file should be used as a WebWorker. + * Background pages in the WebExtensions model do + * not allow to schedule callbacks that should be called + * after a timeout. We can emulate this with WebWorkers. + */ + onmessage = function(e) { self.setInterval(() => postMessage(true), e.data.interval); }