37 lines
1.1 KiB
JavaScript
37 lines
1.1 KiB
JavaScript
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console.log(name, "background page loaded");
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browser.runtime.onMessage.addListener(async (msg, sender, sendResponse) => {
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console.log(name, "background received msg", {msg, sender});
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// We only expect messages coming from a content script in this test.
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if (!sender.tab || msg != "test-tabssendMessage-unknown-tabid") {
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return {
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success: false,
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failureReason: `An unexpected message has been received: ${JSON.stringify({msg, sender})}`,
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};
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}
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try {
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const tabs = await browser.tabs.query({});
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const lastValidTabId = tabs.reduce((acc, tab) => {
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return Math.max(acc, tab.id);
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}, 0);
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const INVALID_TABID = lastValidTabId + 100;
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await browser.tabs.sendMessage(INVALID_TABID, "message-to-unknown-tab");
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return {
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success: false,
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failureReason: `browser.tabs.sendMessage should reject on sending messages to non-existing tab`,
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};
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} catch (err) {
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return {
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success: true,
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isRejected: true,
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errorMessage: err.message,
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};
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}
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});
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console.log(name, "background page ready to receive a content script message...");
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