About Detect Validity when submit (error msg)

Failed to load resource: the server responded with a status of 500 (Internal Server Error) /invoices/ajax/save

when can’t pass the valid check, no any wrong message.
only backside have 500 error

Is this normal? Or which part have the problem?

PS. updated 1.3.3

The server is Centos 6.x
Web server is Nginx

Added the rewrite config as following: (I put invoiceplane in the root folder of web)

if (!-d $request_filename){
	set $rule_0 1$rule_0;
if (!-f $request_filename){
	set $rule_0 2$rule_0;
if ($rule_0 = "21"){
	rewrite /. /index.php last;

Plesse paste the web Server error logs to paste.invoiceplane.com and share the link Herr so we can take a look.

The error msg actually show ‘Please enable Javascript to use InvoicePlane’ and no other message, even the log file.
It seems the AJAX have some problem.
BTW. I tried to found it out in latest time, but sometimes will rejected by browser. So I also tried added white list to browser. No any change.
My browser is 43.0.2357.65 (64-bit) in OSX 10.10

If the server responds with an Error 500 there should be something in the log files.

Another try:

  1. Set the log_threshold from 0 to 2 in the file /application/config/config.php
  2. Now try to save an invoice again.
  3. isThen copy the logs from /application/logs with us (not the index.html file), paste them to paste.invoiceplane.com and share the link here.