Harri, what OS, browser (name/version) and Zabbix version were you using when got this error?
I'm trying to reproduce this error.

Sorry for the delay.

I reproduced it just this moment. Web client:

• OS: Debian 7 Wheezy (amd64), most recent packages installed
• browser: Chromium 37.0.2062.120 (included in Wheezy)

Zabbix Server:

• OS: Debian 8 Jessie (amd64), most recent packages installed
• zabbix 2.4.6, built using the official sources

Hope this helps
Harri

gunarspujats Hi, Harri! Can You please attach POST data from host cloning form?
I still can't reproduce this error, tried same OS, Zabbix and browser version.
Is there possibility that You are using modified form?

Same problem for me. Using the packages that came with Ubuntu 15.10. My version is 2.4.6.

Remote Address:<removed>:443
Request URL:https://zabbix.<removed>/hosts.php
Request Method:POST
Status Code:200 OK

Response Headers
Connection:keep-alive
Content-Encoding:gzip
Content-Type:text/html; charset=UTF-8
Date:Thu, 12 Nov 2015 11:07:22 GMT
Server:nginx/1.9.3 (Ubuntu)
Set-Cookie:zbx_sessionid=<removed>; expires=Sat, 12-Dec-2015 11:07:22 GMT; Max-Age=2592000; secure
Strict-Transport-Security:max-age=31536000;
Transfer-Encoding:chunked
X-Powered-By:PHP/5.6.11-1ubuntu3.1

Request Headers
Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8
Accept-Encoding:gzip, deflate
Accept-Language:de-DE,de;q=0.8,en-US;q=0.6,en;q=0.4
Cache-Control:max-age=0
Connection:keep-alive
Content-Length:540
Content-Type:application/x-www-form-urlencoded
Cookie:PHPSESSID=<removed>; tab=0; zbx_sessionid=<removed>
Host:zabbix.<removed>
Origin:https://zabbix.<removed>
Referer:https://zabbix.<removed>/hosts.php
Upgrade-Insecure-Requests:1
User-Agent:Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/45.0.2454.101 Chrome/45.0.2454.101 Safari/537.36

Form Data
sid:<removed>
form_refresh:1
form:Create host
host:testhost
visiblename:testhost
groups_left:65
newgroup:
interfaces[1][isNew]:true
interfaces[1][interfaceid]:1
interfaces[1][type]:1
interfaces[1][ip]:127.0.0.1
interfaces[1][dns]:testhost
interfaces[1][port]:10050
mainInterfaces[1]:1
description:
proxy_hostid:0
status:0
ipmi_authtype:-1
ipmi_privilege:2
ipmi_username:
ipmi_password:
macros[0][macro]:
macros[0][value]:
inventory_mode:-1
add:Add
groups[65]:65

(1) No translation strings changed.

iivs CLOSED

RESOLVED in development branch svn://svn.zabbix.com/branches/dev/ZBX-9784

I have eliminated the problem by manually upgrading to version 2.4.7 (from the Zabbix Repo).

gunarspujats In Debian/Ubuntu repository Zabbix frontend is modified to use jQuery and Prototype JS libraries from system (/usr/share/javascript). That caused problem, because latest Prototype.js broke host edit form. Now form is fixed and should work with latest Prototype.

iivs Using other user-created packages, can result in unexpected behaviour. Please, use offical packages. The prototype version we use is 1.6.1

(2) Bulk requests not saving when using prototype v1.7.1

RESOLVED in r58079

gunarspujats CLOSED

TESTED,

but close (2) before merging.

(3) r56801 features not an update but silently adds new code that was not in latest branch. These changes require review.

gunarspujats Changes made in r56801 are reverted in r58191.

iivs Good.
CLOSED

Fixed in:

• pre-2.4.8rc1 r58205
• pre-3.0.0rc1 (trunk) r58206