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-rw-r--r--ext/bg/js/backend.js5
-rw-r--r--ext/bg/js/context.js4
2 files changed, 8 insertions, 1 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);
diff --git a/ext/bg/js/context.js b/ext/bg/js/context.js
index bec964fb..1095c7e0 100644
--- a/ext/bg/js/context.js
+++ b/ext/bg/js/context.js
@@ -48,7 +48,9 @@ function setupButtonEvents(selector, command, url) {
}
}
-window.addEventListener('DOMContentLoaded', () => {
+window.addEventListener('DOMContentLoaded', async () => {
+ await yomichan.prepare();
+
showExtensionInfo();
apiGetEnvironmentInfo().then(({browser}) => {