aboutsummaryrefslogtreecommitdiff
path: root/ext/bg/js/backend.js
diff options
context:
space:
mode:
Diffstat (limited to 'ext/bg/js/backend.js')
-rw-r--r--ext/bg/js/backend.js5
1 files changed, 5 insertions, 0 deletions
diff --git a/ext/bg/js/backend.js b/ext/bg/js/backend.js
index be43ecf6..14b0aff1 100644
--- a/ext/bg/js/backend.js
+++ b/ext/bg/js/backend.js
@@ -278,6 +278,11 @@ class Backend {
// Message handlers
async _onApiYomichanCoreReady(_params, sender) {
+ // tab ID isn't set in background (e.g. browser_action)
+ if (typeof sender.tab === 'undefined') {
+ return chrome.runtime.sendMessage({action: 'backendPrepared'});
+ }
+
const tabId = sender.tab.id;
return new Promise((resolve) => {
chrome.tabs.sendMessage(tabId, {action: 'backendPrepared'}, resolve);