Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
"use strict";
const server = createHttpServer({ hosts: ["example.com"] });
// Close the connection without sending any HTTP response. For a PUT request,
// nsHttpTransaction::ParseHead() returns an ignored error without setting
// mHaveAllHeaders, so nsHttpTransaction::Close() completes with mStatus=NS_OK
// and mResponseHead=null. This is the edge case ChannelWrapper::
// ActivityErrorFallbackCheck() detects, firing NS_ERROR_NET_ON_RECEIVING_FROM.
server.registerPathHandler("/put-target", (request, response) => {
response.seizePower();
response.finish();
});
add_task(async function test_error_occurred_no_response() {
const extension = ExtensionTestUtils.loadExtension({
manifest: { permissions: ["webRequest", `${BASE_URL}/`] },
background() {
browser.webRequest.onErrorOccurred.addListener(
details => browser.test.sendMessage("error-occurred", details),
{ urls: ["<all_urls>"] }
);
browser.test.onMessage.addListener(async url => {
try {
await fetch(url, { method: "PUT", body: "test" });
} catch (e) {
// Expected: server closes without sending a response.
}
});
},
});
await extension.startup();
extension.sendMessage(`${BASE_URL}/put-target`);
const { url, error } = await extension.awaitMessage("error-occurred");
equal(
url,
`${BASE_URL}/put-target`,
"onErrorOccurred fires for the right URL"
);
// In OOP mode, seizePower() + finish() causes the PUT channel to complete
// with mStatus=NS_OK and no response headers, triggering
// ActivityErrorFallbackCheck. In in-process mode, fetch() runs in the parent
// process rather than through an extension process, which results in a
// different channel error (NS_ERROR_NOT_AVAILABLE) that ErrorCheck catches.
const expectedError = WebExtensionPolicy.useRemoteWebExtensions
? "NS_ERROR_NET_ON_RECEIVING_FROM"
: "NS_ERROR_NOT_AVAILABLE";
equal(error, expectedError, "onErrorOccurred carries the expected error");
await extension.unload();
});