dnslink-fetch: using Hostux DoH JSON API endpoint by default now

Thanks to https://hostux.social/@valere:
https://hostux.social/@valere/109211704321033926

plugins/dnslink-fetch/README.md

@@ -17,8 +17,10 @@ The `dnslink-fetch` plugin supports the following configuration options:
    Number of alternative endpoints to attempt fetching from simultaneously.  
    If the number of available alternative endpoints is *lower* then `concurrency`, all are used for each request. If it is *higher*, only `concurrency` of them, chosen at random, are used for any given request.
 
- - `dohProvider` (default: "`https://dns.google/resolve`")  
-   DNS-over-HTTPS JSON API provider/endpoint to query when resolving the DNSLink. By default using Google's DoH provider. Other options:
+ - `dohProvider` (default: "`https://dns.hostux.net/dns-query`")  
+   DNS-over-HTTPS JSON API provider/endpoint to query when resolving the DNSLink. By default using [Hostux DoH endpoint](https://dns.hostux.net/en/). Other options:
+   - "`https://dns.google/resolve`"  
+     Google DNS DoH JSON API endpoint
    - "`https://cloudflare-dns.com/dns-query`"  
      CloudFlare's DoH JSON API endpoint
    - "`https://mozilla.cloudflare-dns.com/dns-query`"  

plugins/dnslink-fetch/index.js

@@ -31,10 +31,15 @@
             concurrency: 3,
             
             // DNS-over-HTTPS JSON API provider
-            // using Google's DoH provider; other options:
-            // 'https://cloudflare-dns.com/dns-query'
-            // 'https://mozilla.cloudflare-dns.com/dns-query'
-            dohProvider: 'https://dns.google/resolve',
+            // 
+            // by default using Hostux DoH provider, info here:
+            // - https://dns.hostux.net/en/
+            // 
+            // other known DoH JSON API providers:
+            // - 'https://cloudflare-dns.com/dns-query'
+            // - 'https://mozilla.cloudflare-dns.com/dns-query'
+            // - 'https://dns.google/resolve'
+            dohProvider: 'https://dns.hostux.net/dns-query',
             
             // should the EDNS Client Subnet be masked from authoritative DNS servers for privacy?
             // - https://en.wikipedia.org/wiki/EDNS_Client_Subnet
@@ -109,7 +114,8 @@
             }
             
             // filter by 'dnslink="/https?/', morph into scheme://...
-            let re = /^dnslink=\/(https?)\/(.+)/
+            // we can't rely on the data not to be wrapped in quotation marks, so we need to correct for that too
+            let re = /^"?dnslink=\/(https?)\/([^"]+)"?$/
             response = response
                         .filter(r => re.test(r))
                         .map(r => r.replace(re, "$1:\/\/$2"));