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fix: properly handle optional requestHeaders with onBeforeSendHeaders #29834

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7 changes: 5 additions & 2 deletions shell/browser/api/electron_api_web_request.cc
Expand Up @@ -214,8 +214,11 @@ void ReadFromResponse(v8::Isolate* isolate,
void ReadFromResponse(v8::Isolate* isolate,
gin::Dictionary* response,
net::HttpRequestHeaders* headers) {
headers->Clear();
response->Get("requestHeaders", headers);
v8::Local<v8::Value> value;
if (response->Get("requestHeaders", &value) && value->IsObject()) {
headers->Clear();
gin::Converter<net::HttpRequestHeaders>::FromV8(isolate, value, headers);
}
}

void ReadFromResponse(v8::Isolate* isolate,
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12 changes: 12 additions & 0 deletions spec-main/api-web-request-spec.ts
Expand Up @@ -214,6 +214,18 @@ describe('webRequest module', () => {
await ajax(defaultURL);
});

it('leaves headers unchanged when no requestHeaders in callback', async () => {
let originalRequestHeaders: Record<string, string>;
ses.webRequest.onBeforeSendHeaders((details, callback) => {
originalRequestHeaders = details.requestHeaders;
callback({});
});
ses.webRequest.onSendHeaders((details) => {
expect(details.requestHeaders).to.deep.equal(originalRequestHeaders);
});
await ajax(defaultURL);
});

it('works with file:// protocol', async () => {
const requestHeaders = {
Test: 'header'
Expand Down