From aac049d559e508af91d13ff7d25610a5464c12a5 Mon Sep 17 00:00:00 2001
From: FelisCatus <catusx@gmail.com>
Date: Mon, 25 Dec 2017 19:37:59 -0800
Subject: [PATCH] Trim the log if new logs cannot be written to storage. Fix
 #1288.

---
 .../src/coffee/background.coffee                    | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/omega-target-chromium-extension/src/coffee/background.coffee b/omega-target-chromium-extension/src/coffee/background.coffee
index 2e489c7..ab94fe4 100644
--- a/omega-target-chromium-extension/src/coffee/background.coffee
+++ b/omega-target-chromium-extension/src/coffee/background.coffee
@@ -4,14 +4,23 @@ Promise.longStackTraces()
 
 OmegaTargetCurrent.Log = Object.create(OmegaTargetCurrent.Log)
 Log = OmegaTargetCurrent.Log
+
+_writeLogToLocalStorage = (content) ->
+  try
+    localStorage['log'] += content
+  catch
+    # Maybe we have reached our limit here. See #1288. Try trimming it.
+    localStorage['log'] = content
+
 Log.log = (args...) ->
   console.log(args...)
-  localStorage['log'] += args.map(Log.str.bind(Log)).join(' ') + '\n'
+  content = args.map(Log.str.bind(Log)).join(' ') + '\n'
+  _writeLogToLocalStorage(content)
 Log.error = (args...) ->
   console.error(args...)
   content = args.map(Log.str.bind(Log)).join(' ')
   localStorage['logLastError'] = content
-  localStorage['log'] += 'ERROR: ' + content + '\n'
+  _writeLogToLocalStorage('ERROR: ' + content + '\n')
 
 unhandledPromises = []
 unhandledPromisesId = []