diff --git a/TrimSPweb.js b/TrimSPweb.js
index 9fdf745..cb9f2a8 100644
--- a/TrimSPweb.js
+++ b/TrimSPweb.js
@@ -4,26 +4,70 @@ function writeAsciiFile(filename,content) {
     // Write string content into ascii file filename
     // Go via CGI script
     //console.log(filename, content);
-    // Prepare CGI args
-    let cgiargs = "?fn="+filename;
+    // Prepare CGI args use POST for long files
+    let cgiargs = "fn="+filename; // POST
     let lines = content.split(/\n/);
     let prefix = filename.split(/\//);
     for (let i=0; i<lines.length; i++) {
-	cgiargs += "&line" + i + "=" + lines[i];
+	cgiargs += "&line" + i + "=" + lines[i].replace(/\s\s+/g, ' ');
     }
 
     var xhttp;
     xhttp = new XMLHttpRequest();
     xhttp.onreadystatechange = function() {
         if (this.readyState == 4 && this.status == 200) {
-	    //console.log("resptext=",xhttp.responseText);
+	    console.log("response=",xhttp.responseText);
 	} else if (this.readyState == 4) {
 	    console.log(xhttp.status, xhttp.statusText);
 	}
     }
-    let request = "/cgi-bin/singleTrimSP.cgi"+cgiargs;
-    xhttp.open("GET", request, false);
-    xhttp.send();
+    let request = "/cgi-bin/singleTrimSP.cgi"; //POST
+    xhttp.open("POST", request, false);   //POST
+
+    //Send the proper header information along with the request
+    xhttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded'); //POST
+    xhttp.send(cgiargs); //POST
+    // Now you can add a link to the files
+    let d = document.getElementById("linkDiv");
+    if (!d) {
+	d = document.createElement("div");
+	d.id = "linkDiv";
+	document.body.appendChild(d);
+    }
+    let htmlLink = "Download files: <a href='";
+    htmlLink += "/tmp/" + prefix[2] + ".tgz'>";
+    htmlLink += prefix[2] + ".tgz</a>";
+    d.innerHTML = htmlLink;
+	
+    return(1);
+}
+
+function writeAsciiFile2(filename,content) {
+    // Write string content into ascii file filename
+    // Go via CGI script
+    //console.log(filename, content);
+    // Prepare CGI args use GET for short files
+    let cgiargs = "?fn="+filename; // GET
+    let lines = content.split(/\n/);
+    let prefix = filename.split(/\//);
+    for (let i=0; i<lines.length; i++) {
+	cgiargs += "&line" + i + "=" + lines[i].replace(/\s\s+/g, ' ');
+    }
+
+    var xhttp;
+    xhttp = new XMLHttpRequest();
+    xhttp.onreadystatechange = function() {
+        if (this.readyState == 4 && this.status == 200) {
+	    console.log("response=",xhttp.responseText);
+	} else if (this.readyState == 4) {
+	    console.log(xhttp.status, xhttp.statusText);
+	}
+    }
+    let request = "/cgi-bin/singleTrimSP.cgi"+cgiargs; // GET
+    xhttp.open("GET", request, false);   //GET
+
+    //Send the proper header information along with the request
+    xhttp.send(); // GET
     // Now you can add a link to the files
     let d = document.getElementById("linkDiv");
     if (!d) {
@@ -60,6 +104,7 @@ function readAsciiFile(filename) {
 	filename += "?" + Date();
 	//filename = "http://musruser.psi.ch" + filename;
         xhttp.open("GET", filename, false);
+	xhttp.overrideMimeType("text/plain");
         xhttp.send();
 	return(xhttp.responseText);
     }