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feat: route HTTP proxy credentials through --proxy-server

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Bypass Playwright's CDP Fetch.authRequired interceptor for authenticated
HTTP proxies by passing inline credentials via Chrome's --proxy-server
flag. Chrome sends Proxy-Authorization preemptively, avoiding the 407
round-trip that breaks on some proxies and Google domains (#182).

Gated on platform (linux-x64, windows-x64) and binary version >= 146.0.7680.177.5.
Unsupported platforms fall back to Playwright's proxy dict.
Puppeteer falls back to page.authenticate() on unsupported platforms.
This commit is contained in:
CloakHQ
2026-05-21 05:51:03 +02:00
parent 864cae2493
commit 8028ddefef
8 changed files with 542 additions and 82 deletions
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js/tests/puppeteer.test.ts
+49 -20
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@@ -84,16 +84,39 @@ describe("puppeteer launch", () => {
expect(callArgs.args).toContain("--proxy-bypass-list=.google.com,localhost");
});
it("monkey-patches newPage for proxy auth", async () => {
const { launch } = await import("../src/puppeteer.js");
const browser = await launch({ proxy: "http://user:pass@proxy:8080" });
it("uses page.authenticate fallback for http proxy on unsupported platform", async () => {
const config = await import("../src/config.js");
vi.spyOn(config, "getPlatformTag").mockReturnValue("darwin-arm64");
try {
const { launch } = await import("../src/puppeteer.js");
const browser = await launch({ proxy: "http://user:pass@proxy:8080" });
// newPage should auto-authenticate
const page = await browser.newPage();
expect(page.authenticate).toHaveBeenCalledWith({
username: "user",
password: "pass",
});
const page = await browser.newPage();
expect(page.authenticate).toHaveBeenCalledWith({
username: "user",
password: "pass",
});
} finally {
vi.restoreAllMocks();
}
});
it("passes inline creds via --proxy-server on supported platform (no page.authenticate)", async () => {
const config = await import("../src/config.js");
vi.spyOn(config, "getPlatformTag").mockReturnValue("linux-x64");
vi.spyOn(config, "getChromiumVersion").mockReturnValue("146.0.7680.177.5");
try {
const { launch } = await import("../src/puppeteer.js");
const browser = await launch({ proxy: "http://user:pass@proxy:8080" });
const callArgs = vi.mocked(puppeteerMock.default.launch).mock.calls[0][0];
expect(callArgs.args).toContain("--proxy-server=http://user:pass@proxy:8080");
const page = await browser.newPage();
expect(page.authenticate).not.toHaveBeenCalled();
} finally {
vi.restoreAllMocks();
}
});
it("injects timezone and locale as binary flags", async () => {
@@ -189,18 +212,24 @@ describe("puppeteer launchPersistentContext", () => {
expect(callArgs.args.some((a: string) => a.startsWith("--fingerprint="))).toBe(true);
});
it("handles proxy auth with persistent context", async () => {
const { launchPersistentContext } = await import("../src/puppeteer.js");
const browser = await launchPersistentContext({
userDataDir: "./my-profile",
proxy: "http://user:pass@proxy:8080",
});
it("uses page.authenticate fallback for http proxy in persistent context on unsupported platform", async () => {
const config = await import("../src/config.js");
vi.spyOn(config, "getPlatformTag").mockReturnValue("darwin-arm64");
try {
const { launchPersistentContext } = await import("../src/puppeteer.js");
const browser = await launchPersistentContext({
userDataDir: "./my-profile",
proxy: "http://user:pass@proxy:8080",
});
const page = await browser.newPage();
expect(page.authenticate).toHaveBeenCalledWith({
username: "user",
password: "pass",
});
const page = await browser.newPage();
expect(page.authenticate).toHaveBeenCalledWith({
username: "user",
password: "pass",
});
} finally {
vi.restoreAllMocks();
}
});
it("keeps SOCKS5 credentials in --proxy-server URL", async () => {