fix: shallow clone browserPoolOptions before normalization

packages/playwright-crawler/src/internals/playwright-crawler.ts

@@ -192,10 +192,13 @@ export class PlaywrightCrawler extends BrowserCrawler<{ browserPlugins: [Playwri
         const {
             launchContext = {},
             headless,
-            browserPoolOptions = {} as BrowserPoolOptions<PlaywrightPlugin>,
             ...browserCrawlerOptions
         } = options;
 
+        const browserPoolOptions = {
+            ...options.browserPoolOptions,
+        } as BrowserPoolOptions;
+
         if (launchContext.proxyUrl) {
             throw new Error('PlaywrightCrawlerOptions.launchContext.proxyUrl is not allowed in PlaywrightCrawler.'
                 + 'Use PlaywrightCrawlerOptions.proxyConfiguration');

packages/puppeteer-crawler/src/internals/puppeteer-crawler.ts

@@ -141,11 +141,14 @@ export class PuppeteerCrawler extends BrowserCrawler<{ browserPlugins: [Puppetee
         const {
             launchContext = {},
             headless,
-            browserPoolOptions = {} as BrowserPoolOptions,
             proxyConfiguration,
             ...browserCrawlerOptions
         } = options;
 
+        const browserPoolOptions = {
+            ...options.browserPoolOptions,
+        } as BrowserPoolOptions;
+
         if (launchContext.proxyUrl) {
             throw new Error('PuppeteerCrawlerOptions.launchContext.proxyUrl is not allowed in PuppeteerCrawler.'
                 + 'Use PuppeteerCrawlerOptions.proxyConfiguration');

test/core/crawlers/playwright_crawler.test.ts

@@ -133,4 +133,16 @@ describe('PlaywrightCrawler', () => {
         await playwrightCrawler.run();
         expect(options.timeout).toEqual(timeoutSecs * 1000);
     });
+
+    test('shallow clones browserPoolOptions before normalization', () => {
+        const options = {
+            browserPoolOptions: {},
+            requestHandler: async () => {},
+        };
+
+        void new PlaywrightCrawler(options);
+        void new PlaywrightCrawler(options);
+
+        expect(Object.keys(options.browserPoolOptions).length).toBe(0);
+    });
 });

test/core/crawlers/puppeteer_crawler.test.ts

@@ -399,6 +399,18 @@ describe('PuppeteerCrawler', () => {
         expect(sessions.size).toBe(3); // 3 different sessions used
     });
 
+    test('shallow clones browserPoolOptions before normalization', () => {
+        const options = {
+            browserPoolOptions: {},
+            requestHandler: async () => {},
+        };
+
+        void new PuppeteerCrawler(options);
+        void new PuppeteerCrawler(options);
+
+        expect(Object.keys(options.browserPoolOptions).length).toBe(0);
+    });
+
     if (os.platform() !== 'darwin') {
         test('proxy per page', async () => {
             const requestListLarge = await RequestList.open({