Fix join path

src/certnode/lib/client.js

@@ -1,5 +1,4 @@
 const fs = require('fs')
-const http = require('http')
 const path = require('path')
 const {
   promisify
@@ -105,16 +104,12 @@ class Client {
       challenge
     } = await this.authz(authzUrls[0])
 
-    console.log('step 1');
     await this.completeChallenge(challenge)
-    console.log('step 2');
     await this.pollAuthz(authzUrls[0])
-    console.log('step 3');
     const {
       certificate,
       privateKeyData
     } = await this.finalizeOrder(finalizeUrl, domain, email)
-    console.log('step 4');
 
     return {
       certificate,

src/client.js

@@ -6,6 +6,7 @@ const {
 const {
     findTxtRecord
 } = require('./util');
+const combineURLs = require('axios/lib/helpers/combineURLs');
 
 /**
  * @type {Object<string, {expire: number, expand: boolean, url: string}>}
@@ -36,6 +37,7 @@ const listener = async function (/** @type {import('http').IncomingMessage} */ r
         if (req.url.startsWith(acme_prefix)) {
             if (client.challengeCallbacks) {
                 res.writeHead(200, {
+                    // This is important :)
                     'content-type': 'application/octet-stream'
                 });
                 res.write(client.challengeCallbacks());
@@ -51,7 +53,7 @@ const listener = async function (/** @type {import('http').IncomingMessage} */ r
             resolveCache[req.headers.host] = cache;
         }
         res.writeHead(301, {
-            'Location': cache.expand ? path.join(cache.url, req.url) : cache.url,
+            'Location': cache.expand ? combineURLs(cache.url, req.url) : cache.url,
         });
         return;
     } catch (error) {

src/sni.js

@@ -10,7 +10,7 @@ const {
 const { default: AwaitLock } = require('await-lock');
 const record_email_prefix = 'forward-domain-cert-maintainer=';
 const client = new certnode.Client();
-const certsDir = path.join(__dirname, '.certs');
+const certsDir = path.join(__dirname, '../.certs');
 
 /**
  * @type {Object<string, {cert: any, key: any, expire: number}>}