Chrome扩展程序的POST请求导致500错误

Question

I'm making a POST request from a Chrome extension that appears identical to the one that submitting the form manually would do. I've submitted both and compared the body and headers and they seem to be identical.

The POST made via the browser form results in a 302 redirect. The POSTed entry is created and the user ends up on an edit screen for it.

The POST made via the extension results in a 500 error.

I'm filtering many of the headers sent by the extension to match those made by the browser, in case the server is looking for certain things that tip off a request as being non-native.

Hoping to exhaust all options before contacting the devs of the system being POSTed to. Any obvious things that could be happening server-side to block this request?

Here's the POST request made via the browser form:

Request Headers

Host: myhost.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:53.0) Gecko/20100101 Firefox/53.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate, br
Content-Type: application/x-www-form-urlencoded
Content-Length: 901
Referer: https://myhost.com/referer
Cookie: app2=cookieredacted
Connection: keep-alive
Upgrade-Insecure-Requests: 1
Pragma: no-cache
Cache-Control: no-cache

Request Body

record[user_name]=aasldkjflasdjf
record[new_password]=ljl;jl;kjklj
record[first_name]=ethan
record[middle_name]
record[last_name]=lastnm
record[name_suffix]
record[gender]=M
record[dob]=07/28/77
record[ssn]=654656546
record[group_number]
record[misc_number]
record[mothers_maiden_name]
record[active]=N
record[active]=Y
record[has_paper_chart]=0
record[notes]
record[address1]=234+htha+st
record[address2]
record[city]=euge
record[county_of_residence]
record[state]=OR
record[zip]=98754
record[country]
record[tel1]=5155555555
record[tel1_status]=4
record[tel2]
record[tel2_status]
record[cell]
record[cell_status]
record[email]=ethan@foo.com
record[preferred_contact]=home_tel
record[house]
record[room]
record[bed]
record[classroom]

Response Headers

Server: nginx/1.6.2
Date: Sun, 09 Jul 2017 01:06:12 GMT
Content-Type: text/plain
Transfer-Encoding: chunked
Connection: keep-alive
Status: 302 Found
Location: /entry/edit

And from the extension:

Request Headers

Accept:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding:gzip, deflate, br
Accept-Language:en-US,en;q=0.5
Cache-Control:no-cache
Connection:keep-alive
Content-Length:920
Content-Type:application/x-www-form-urlencoded
Cookie:app2=cookieredacted; gsScrollPos-2545=
Host:myhost.com
Pragma:no-cache
Referer:https://myhost.com/referer
Upgrade-Insecure-Requests:1
User-Agent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.50 Safari/537.36

Request Body

new_password_stub:"FoECbiRN"
record[active]:"Y"
record[address1]:"123 N 5th St"
record[address2]:""
record[bed]:""
record[cell]:""
record[cell_status]:""
record[city]:"Eugene"
record[classroom]:""
record[country]:""
record[county_of_residence]:""
record[dob]:"9/28/91"
record[email]:"ethan@foo.com"
record[first_name]:"Foo"
record[gender]:"M"
record[group_number]:""
record[has_paper_chart]:0
record[house]:""
record[last_name]:"Bar"
record[middle_name]:""
record[misc_number]:""
record[mothers_maiden_name]:""
record[name_suffix]:""
record[new_password]:"FoECbiRN"
record[notes]:""
record[preferred_contact]:"home_tel"
record[room]:""
record[send_notifications]:0
record[ssn]:"222222222"
record[state]:"OR"
record[tel1]:"5155555555"
record[tel1_status]:2
record[tel2]:""
record[tel2_status]:""
record[user_name]:"BarFoo2017"
record[zip]:"97401"

Response Headers

Cache-Control:no-cache
Connection:keep-alive
Content-Length:5110
Content-Type:text/html; charset=utf-8
Date:Sun, 09 Jul 2017 02:09:33 GMT
Server:nginx/1.6.2
Set-Cookie:mysite_session_id=; max-age=0; expires=Thu, 01 Jan 1970 00:00:00 -0000
Status:500 Internal Server Error

Answer 1

Thanks to wOxxOm for this one -

The extension was posting an extra field record[send_notifications] which was causing the 500 error.