Nginx with pre-render is replacing URL

I configured the Nginx web server for my website and I am using pre-render configuration in that.

I have checked the official configuration (https://prerender.io) as well as follow the below links:

https://gist.github.com/thoop/8165802

https://medium.com/@damwhitaker/using-aws-ec2-nginx-and-prerender-io-as-a-proxy-for-a-single-page-app-2c3769689060

but in some cases, my URL has been changed '?' to '%3F'.

Example:

original URL: https://www.example.com/resource/tech/business-wire?resource_id=7458

Changed URL: https://www.example.com/resource/tech/business-wire%3Fresource_id=7458

Nginx configuration:

location / {
        add_header 'Access-Control-Allow-Origin' "*";
    try_files $uri $uri/ @prerender;
    add_header Link "<$scheme://$http_host$request_uri>; rel=\"canonical\"";
}

location @prerender {
    proxy_set_header X-Prerender-Token C9S8QChyoX1AbskxiBNW;
    
    set $prerender 0;
    if ($http_user_agent ~* "googlebot|bingbot|yandex|baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest\/0\.|pinterestbot|slackbot|vkShare|W3C_Validator|whatsapp|flipboard|SkypeUriPreview|redditbot|SiteCheckerBotCrawler|dotbot|roberbot|ubersuggest|SEMrushBot") {
        set $prerender 1;
    }
    if ($args ~ "_escaped_fragment_") {
        set $prerender 1;
    }
    if ($http_user_agent ~ "Prerender") {
        set $prerender 0;
    }
    if ($uri ~* "\.(js|css|xml|less|png|jpg|jpeg|gif|pdf|doc|txt|ico|rss|zip|mp3|rar|exe|wmv|doc|avi|ppt|mpg|mpeg|tif|wav|mov|psd|ai|xls|mp4|m4a|swf|dat|dmg|iso|flv|m4v|torrent|ttf|woff|svg|eot)") {
        set $prerender 0;
    }
    
    #resolve using Google's DNS server to force DNS resolution and prevent caching of IPs
    resolver 8.8.8.8;

    if ($prerender = 1) {
        
        #setting prerender as a variable forces DNS resolution since nginx caches IPs and doesn't play well with load balancing
        set $prerender "service.prerender.io";
        rewrite .* /https://$host$request_uri? break;
        proxy_pass http://$prerender;
    }
    if ($prerender = 0) {
        rewrite .* /index.html break;
    }
}