Question

FastCGI sent in stderr: "PHP message: POST error: Unexpected response (code 411)

Hi I have used google cloud print to print order from customers I use WordPress and woocommerce for store my product I have to use a plugin to connect the printer with Google cloud printing but after put the API key is was an error with Authentication failed (411) header request I have sue Nginx server PHP 7.0 with default config have any idea for help or the topic for resole Thank you in advance for your help

error log

2019/04/18 09:10:55 [error] 2615#2615: *1297 FastCGI sent in stderr: “PHP message: POST error: Unexpected response (code 411): a:6:{s:7:“headers”;O:42:“Requests_Utility_CaseInsensitiveDictionary”:1:{s:7:”" while reading response header from upstream, client: xx.xxx.xxx.xxx, server: www.example.com, request: “GET /wp-admin/options-general.php?page=xc_woo_cloud_settings HTTP/2.0”, upstream: “fastcgi://unix:/run/php/php7.0-fpm.sock:”, host: “www.www.example.com”, referrer: “https://www.www.example.com/wp-admin/


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Greetings!

In this case it looks like you’re getting a 411 error, which means that your application is not returning a Content- Length header. Fixing this is most likely going to require the developer of the plugin to weigh in.

Jarland