read posts per page from page

diff --git a/dfde-singlepage.user.js b/dfde-singlepage.user.js
index 320a68882c79f57d22d695484ce3fecbec2bb353..25ed90b147a2b6ef10e477198ceb480304e363b4 100644 (file)
--- a/dfde-singlepage.user.js
+++ b/dfde-singlepage.user.js
@@ -1,7 +1,7 @@
 // ==UserScript==
 // @name         dfde-singlepage
 // @namespace    de.debianforum
-// @version      0.3
+// @version      0.4
 // @description  View all pages of a thread on one page
 // @author       You
 // @match        https://debianforum.de/forum/viewtopic.php*t=*
@@ -34,10 +34,12 @@
         if (unsuitable) { window.location.href= "https://debianforum.de/forum/viewtopic.php?" + thread_id; }
         let promises = []
 
+        const postPerPage = parseInt(document.querySelector('input[name=page-number]').attributes["data-per-page"].value);
+
         // async wrapper to fix the order of requests/posts
         const fn = async() => {
             for (var p=1; p<pages; p++) {
-                const url = "https://debianforum.de/forum/viewtopic.php?" + thread_id + "&start=" + p*15;
+                const url = "https://debianforum.de/forum/viewtopic.php?" + thread_id + "&start=" + p*postPerPage;
 
                 promises.push(
                     fetch(url)