ajax crawling deprecated

[bjo81]

2021-11-03 10:41:03 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2021-11-03 10:41:03 [scrapy.core.engine] INFO: Spider opened
2021-11-03 10:41:03 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2021-11-03 10:41:03 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2021-11-03 10:41:03 [scrapy.core.engine] DEBUG: Crawled (404) <GET https://groups.google.com//forum/?_escaped_fragment_=forum/pywws> (referer: None)
2021-11-03 10:41:03 [scrapy.spidermiddlewares.httperror] INFO: Ignoring response <404 https://groups.google.com//forum/?_escaped_fragment_=forum/pywws>: HTTP status code is not handled or not allowed
2021-11-03 10:41:03 [scrapy.core.engine] INFO: Closing spider (finished)
2021-11-03 10:41:03 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 255,
 'downloader/request_count': 1,
 'downloader/request_method_count/GET': 1,
 'downloader/response_bytes': 1983,
 'downloader/response_count': 1,
 'downloader/response_status_count/404': 1,
 'elapsed_time_seconds': 0.287569,
 'finish_reason': 'finished',
 'finish_time': datetime.datetime(2021, 11, 3, 9, 41, 3, 733829),
 'httpcompression/response_bytes': 1642,
 'httpcompression/response_count': 1,
 'httperror/response_ignored_count': 1,
 'httperror/response_ignored_status_count/404': 1,
 'log_count/DEBUG': 1,
 'log_count/INFO': 11,
 'memusage/max': 59961344,
 'memusage/startup': 59961344,
 'response_received_count': 1,
 'scheduler/dequeued': 1,
 'scheduler/dequeued/memory': 1,
 'scheduler/enqueued': 1,
 'scheduler/enqueued/memory': 1,
 'start_time': datetime.datetime(2021, 11, 3, 9, 41, 3, 446260)}
2021-11-03 10:41:03 [scrapy.core.engine] INFO: Spider closed (finished)

See also icy/google-group-crawler#42 (comment)