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415 status code. Fetch() post with formData and Int params

I am trying to do a fetch() post and send a FormData object and an Int. I can do one or the other but when trying to send both I get unrelating 415 status codes.
My post data looks like:
var payload = {
documents: documents, // which is of type new FormData()
applicationId: applicationId // which is of type int
}
method: "POST",
headers: {
"Authorization": `Bearer ${accessToken}`
},
body: payload
And my c# backend looks like below:
[HttpPost]
public async Task<JsonResult> UploadDocuments(DocumentUploadVm payload)
below is my request headers:
:authority: localhost:44343
:method: POST
:path: /api/expert/UploadDocuments
:scheme: https
accept: */*
accept-encoding: gzip, deflate, br
accept-language: en-US,en;q=0.9
authorization: Bearer eyJraWQiOiJYNnplamszSy10RjBkMmtWYXpHNE84aFNsUGtSSklhT1ZMeGQ3dC1tQ21FIiwiYWxnIjoiUlMyNTYifQ.eyJ2ZXIiOjEsImp0aSI6IkFULnRuaGFQVGp5RnY4eEhMaGFVM18zLW5rdlVLWV9QUEw5aXJTczI4NHF3c3ciLCJpc3MiOiJodHRwczovL2Rldi04NzAzMTAub2t0YS5jb20vb2F1dGgyL2RlZmF1bHQiLCJhdWQiOiJhcGk6Ly9kZWZhdWx0IiwiaWF0IjoxNjAwNjQ0MzAzLCJleHAiOjE2MDA2NDc5MDMsImNpZCI6IjBvYXAzbmdtNG1BUDBTT1YzNHg2IiwidWlkIjoiMDB1ZGFudnVpUjB6SHp6emk0eDYiLCJzY3AiOlsicHJvZmlsZSIsImdyb3VwcyIsImVtYWlsIiwib3BlbmlkIiwicGhvbmUiXSwic3ViIjoiZGFuaWVsOTVicm93bkBnbWFpbC5jb20ifQ.0ya1CTLuPQcPLyXgph7TQMzwhWtUWrb1QzQx6G2kS4X5fawXZ13XFIztG2TMjCIrTrbGa1WPx-hYmqI7EB2Eilhp0ekQKt85U7Q3Ug5HuQQMhrH8KjvHF5fhElNwf5z1vp4Zgtg1MbF-MPetoV4ttG3SQwxLJ-SFHZFkA-HY2lzoMQS-40V53q5ruVbeXEpX8iwhSXzA7mp53YEaSNWecDJxHoBy6yXszrJrpkQ1wqsp9p5ti1XASVczlLkL-J-IOx6Rf61LfPH9_Q4KR3aZsd_peInJF14YF0lLesmxcnQcvbdMGsUO0PrPtku8wQEeuuQGYn-zZR5eBSDR9ZbzLw
content-length: 15
content-type: text/plain;charset=UTF-8
origin: http://localhost:8080
referer: http://localhost:8080/expert/register
sec-fetch-dest: empty
sec-fetch-mode: cors
sec-fetch-site: cross-site
user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.102 Safari/537.36
I have tried using the [FromBody],[FromForm] tags, stringifying and everything in between to no avail. Any help would be greeeeeeeatly appreciated as I am losing my mind.

How to get the parameters needed to make a post in this case?

I am using selenium and requests aimed at getting some data from a website. Since the data is acquired by Ajex request, I decided to use requests to imitate the post request. Some parameters are needed in this case. Chrome checking results are as follows:
:authority: www.miaomiaozhe.com
:method: POST
:path: /api/pricehistory/getUrlPriceHistory
:scheme: https
accept: /
accept-encoding: gzip, deflate, br
accept-language: zh-CN,zh;q=0.9
content-length: 3284
content-type: application/x-www-form-urlencoded; charset=UTF-8
cookie: HZBID=db556a075167c32227609e6871911beb; gr_user_id=bd42c97e-3291-4b18-bc37-0c12b367967d;
PHPSESSID=qsksp6v3t4m7880j0ptjshc7u7; MMZUFLAG=104163326; MMZUSS=3531fecdefc1b40c34c9b568cde18326; gr_session_id_b49be8fba0e9e60a=74e18968-dad1-449d-b248-71c2b2d855cd; gr_session_id_b49be8fba0e9e60a_74e18968-dad1-449d-b248-71c2b2d855cd=true
origin: https://www.miaomiaozhe.com
referer: https://www.miaomiaozhe.com/pricehistory
sec-fetch-dest: empty
sec-fetch-mode: cors
sec-fetch-site: same-origin
user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.122 Safari/537.36
x-requested-with: XMLHttpRequest
Above are the request headers of the post.
and the form data is as follows:
As is shown in the picture, there is a parameter named nvcVal in the post.
by checking the JS codes of the website, I found it's from nvcVal: window.getNVCVal().
so I coded the following codes to get the data.
from time import sleep
import requests
import json
chrome_opt = webdriver.ChromeOptions()
prefs = {"profile.managed_default_content_settings.images": 1}
# chrome_opt.add_experimental_option("prefs", prefs)
# chrome_opt.add_experimental_option('excludeSwitches', ['enable-automation'])
chrome_opt.add_argument('user-agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.122 Safari/537.36"')
driver = webdriver.Chrome(chrome_options=chrome_opt)
driver.get("https://www.miaomiaozhe.com/pricehistory")
# driver.find_element_by_class_name('pl').click()
good3 = "https://detail.tmall.com/item.htm?spm=a220m.1000858.1000725.1.e748471bZmg76Q&id=594572481181&skuId=4360012669001&areaId=420100&user_id=1809177149&cat_id=2&is_b=1&rn=04e4c83fcb68c340abf88983da82b1b7"
good2 = "https://detail.tmall.com/item.htm?spm=a220m.1000858.1000725.7.e748471bIRN6jQ&id=554640570620&skuId=4341085905022&areaId=420100&user_id=2928380385&cat_id=2&is_b=1&rn=6ba9712cf53485a574d73191e05d0cbf"
goodURL = "https://detail.tmall.com/item.htm?id=569343149791&spm=875.7931836/B.2017081.2.66144265gU7Lgd&scm=1007.12144.81309.73299_0_0&pvid=10ae9600-6e84-4ad0-8e1e-a8379cea71c3&utparam=%7B%22x_hestia_source%22:%2273299%22,%22x_object_type%22:%22item%22,%22x_mt%22:9,%22x_src%22:%2273299%22,%22x_pos%22:1,%22x_pvid%22:%2210ae9600-6e84-4ad0-8e1e-a8379cea71c3%22,%22x_object_id%22:569343149791%7D"
driver.find_element_by_id('ipt').send_keys(good3)
# driver.find_element_by_id('search-btn').click()
sleep(2)
js = " return window.getNVCVal()"
nvcVal = driver.execute_script(js)
print("nvcVal = "+str(nvcVal))
# new_nvcVal = "%7B%22a%22%3A%22FFFF0N0N000000006AFF%22%2C%22c%22%3A%221590723506842%3A0.99342660331515%22%2C%22d%22%3A%22nvc_activity%22%2C%22h%22%3A%7B%22key1%22%3A%22code0%22%2C%22nvcCode%22%3A400%2C%22umidToken%22%3A%22T21B886C0F961A98E862F5CF69393964795B83A19E0D643903B04E06AD6%22%7D%2C%22j%22%3A%7B%22test%22%3A1%7D%2C%22b%22%3A%22124%23YhFPnxFZxG0xA7yf6JMuAlDS%2BUOvpV9oiw8W9aZ3qg%2FOqdJA%2Fe%2BbSWcxIK5G%2FETKzoSdFuvXCK%2BnhxCNTe1hYMCi6JdG32LOCkudgS9CR6yNrGk8moL4XOOzVHI8Xm%2Bl0i8EJrE8p1Rc0hsLv%2Fef58%2FZCD0mxKtronkZ6a84khvKaJtwZvIENL4eTBPXNywFpTcpLoDJy3LZLgR1UkkoaT%2F%2Ba8aXsPY73H92xbk3epwEzEoezisui2xzIi7Ji20WFFfm7s52HyARgOzgfXs5kTtIQlcj%2BJYcpA%2BuZhEUxy2FqtOoHCaDvewvQq7Au3GkZYB6cRQw49aAo74C1CnfbvxXu4B8HbA2qfVXWCi4o7Cq%2FhFzk0MQ%2FVAzymPxXosxxs6iPH16Fq4vBjKytiZUYXg8ulppFkSfMBefa4ttv5xVfs%2BunR4vMk1QvLpAw7AX8JzoDY%2FJtMdpfnsgCIWIYCXyxpJ%2FfWj78qYBATgePa4OygNq8kcFKbnNrw%2BW2mWo1ecP2im11%2B4Kf9%2B2WmgDL%2B9R1hzZFS2Q5omZWbBAgp6FhLBo4QZwQv1bGPvDEA7omMItp%2FswEuRvUyumFjivx0GbxQHya%2BpKVbtFYfR%2Bw7Ktzj2OH%2BrQG0Jnnn9QgLj3nl24GohovAeEHmqJvhWREtQzoZKi7FrAmgXmxbwm9f3l%2B%2Fmj8RY%2Bxm2SyXIMWwXa%2Ff9lnDc5m4onufT%2Fefyg2ayAO%2Fi2%2BoVnjUK%2BptEeFgl%2B3OKWidZn%2BnJIVk6MAwTggk3bbWQ42SuPaodKeaVJOZ%2FOAiQPFQYGtIBzCNlUJN7cuBSOLSl44atsCjx%2BA5TFfsWXdKBgJj6AO1hPm19b%2FkCMkXxliO6z5ggczqjEDYlco4xoa3hbSyF47kC4aOrIvUY45OfmYAAB2UcL89J9xbHdQpqCXKkegnfUxxLT6DABlRZUG046XrcB5UlAzQVE%2BxPfTn8YOl6yXa0GYC%2FeaDhGTmuVV5DYf6r3M%2BRYH%2BQOt3%2BDLUHqs%2FRZLl6kM62Bcx%2FCtINSnFE5MDRji2u%2F8pNP6qT9tcSJ7Jpt7d%2BvHdL4EAL7w8PIkKNKCZbsO6YF7CwxRJxzk7Xay5qeX5f%2BshvHw%2B%2F8JIQZ%2Bb8hXp6vBNNdpb3mzJkkHLsySik7Afy58evmjzCC1C8Nsx3GWrcZ9NQ%2FWTVMKR3vxWwYYFFcuq3OzI7AGULiChCL94JF%2F%2BIQlN931yOF0iFGgmArillK9FpEnDuGMnHFhVLp0HtWDUtpLk%2BTZ9pW8OUVb4ZDCP9qJPIlBGEiW23%2BxmAw%2FCtpgWt12%2FuePq%2FM73jgfkT7B5raQDBlEBHmxrdrfXwOAPKcL8Sy%2FKMaIta8jsDsEpi6VSO7cCIUukxXJu0v%2FBlyQSMdOOfjlDcPf8bJeMWeA%2Bh1QVyiXWNW5xBEiJFmbwDojakisamVHkef9I%2BhNH6JZrPBPiYtWLBCYWPBkp%2FuI8ccFLWpGnDzEvEhwg0OzpUK%2FTkWYOX6%2Fc82Kf%2BbDDYW8BGyTdce%2FKSOxDev9janT6tK6m1H7Xx195A0BVXNQ4HF5WIWHS9ds9MELSkUQx1gYZ51eSbFK2z5PghURKkNX2GPTMbkkEwaOZCU48hinHKXMkkxq4qaO6l12TwCfDZjMa%2F0OWF%2Fdhwi8CBXLpD2yzqRVbstHRh8SONspbQzOV5uSg4CFDk1oPsNMwWfofeRrucTkuop%2BOPDRIzI2EvSuxPwvLM2FeVkLhRcduEk82b0QkZQNjBxryNJ9UCQTzXxsnKzQ8q%2B5t8wftsFu0pw1zk5gMrNQVfMPZcNGgOetPlv9X2e9Y34FqGGtduLySo9jJ%2F7Q4MEESg5AaNtGjmc5vr4QW0%2FcyKXipTs1j6MLc3lPZ9VK4%2B0gNFxuhLWREhcBq6uT7SDzKkHN%2BEDgvtW3M02%2FtjYRYZywdDdYsEhjmmAxSvNoDzn38wB%2Fe0TCw9HSikNPepnj7ngEnNHao6SRYASV%2FikO0H0InYLbwYIm4WZIqXp6TS4PiZZwE%2F2g7OHJ6Yplmi19jrUJ8Lpg91d1ZIZbUung7OBInYLlwYnmfWeIqsXgTzo1nIelUX2g7vtIn%2FplwDzm4%2BZI8LLgTGb7Z%2B9yq%2F2DbOBIZzj6WhNcSCzI8XQcrFo1n%2FGxCnnehIcDCsVVCiWdJIQ9ijF01GTKDBYugeql%2FnVhY%2F5jjDKyxvUoVqbFcNM4HhgDtI79Ih5i9upBgavNfEb8yzXblH6gQmMrSzjS7didriS4q8DffZ8JyM3SLSxvXuljBztEtxqUkbXFTI44Jg3fQL4AgAKAuC%2Ftv7vNFGHHz6NZeCs5idxQleLgz5EmqrXWboLBwppQcWkXFh35VFqXyC0JfGIeE743B9stqjO5H5jbyD4qy1vsISbm0G0LzGrXkZUgHBThjBRinW78jnWKYdlHB%2F5AR2IZG1XdV6nIoj10twUTIdLuZ0fR6JsbLZXW%2Fn%2F%2FbPv6O9yfqz4Co2JjPaIL8NTwX9vxnpi%2Fg8i8EhXB1dy6iJwT7btl1AmVWx4dnsCHOcHjcTKAd%2BwvYEWJavJIvCI8FcfqStlLbJDoHl2bOo9W6UedB35e5V9WpyHrqy8pSkfuRzm9T5hlgwjEFB6%2FzgFbyADaV0Z9JP3I3Q7F%2BsWzUEBGmKbC3LsuZ2khjquN2Be9BJ%3D%22%2C%22e%22%3A%22KfLnQbaexlHsDdRdQx0L4Q0fMePRlUSPsuteAtUngD99tuEUdiugeouLEJG0uvIa-9Z-k-lQ6fL3lpbcTxPN4fk9Wu-Q71ExCDYni5eDYwVSG_W5NXXiw0SnMK_GknTTTFhOiVDaaNOdAoCLDoRnw7GQkCz_wBSon-RNF-5mxkqAc4zx0vPSPsaMl7xGzFOWYizM9JlKkpiqJYbEB2zQGA%22%7D"
# res = driver.execute_script("return " + ajax_query)
url = "https://www.miaomiaozhe.com/api/pricehistory/getUrlPriceHistory"
data = {'url': good3, 'nvcVal': nvcVal}
header = {"authority": "www.miaomiaozhe.com", "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.122 Safari/537.36"}
# cookie = {"HZBID":"db556a075167c32227609e6871911beb", "gr_user_id":"bd42c97e-3291-4b18-bc37-0c12b367967d", "PHPSESSID":"qsksp6v3t4m7880j0ptjshc7u", "MMZUFLAG":"104163326", "MMZUSS":"3531fecdefc1b40c34c9b568cde18326", "gr_session_id_b49be8fba0e9e60a":"c1c318c3-8db5-4bbd-8f78-e893b0dea1ec", "gr_session_id_b49be8fba0e9e60a_c1c318c3-8db5-4bbd-8f78-e893b0dea1ec":"true"}
req = requests.post(url, data, headers=header)
print(req.text)
driver.close()'''
I failed, unawaring what's been wrong.
I guess it could be the problem of the parameter of nvcVal, but I don't have any idea how I can get it right.

Redirection in Pyramid after POST

I am trying to do this simple(?) thing:
in a test page ("/test") send some parameters to the server using POST
when the view detects some those parameters, redirect to home ("/")
I can get this to work but only if I post the values using a form, it does not work if I run a javascript function calling a xmlhttprequest. I used the cookiecutter-starter and just added some lines.
__init__.py
from pyramid.config import Configurator
def main(global_config, **settings):
""" This function returns a Pyramid WSGI application.
"""
config = Configurator(settings=settings)
config.include('pyramid_chameleon')
config.add_static_view('static', 'static', cache_max_age=0)
config.add_route('home', '/')
config.add_route('test', '/test')
config.scan()
return config.make_wsgi_app()
views.py
from pyramid.view import view_config
from pyramid.httpexceptions import HTTPFound,HTTPSeeOther
#view_config(route_name='home', renderer='templates/mytemplate.pt')
def my_view(request):
print("in my view")
return {'project': 'project'}
#view_config(route_name='test', renderer='templates/jg.pt')
def y_view(request):
prm_0 = request.POST.get("prm_0",None)
prm_1 = request.POST.get("prm_1",None)
if prm_0 and prm_1:
print("parameters present")
return HTTPFound(location=request.route_url("home"))
else:
print("no parameters found")
return {}
templates/jg.pt
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:tal="http://xml.zope.org/namespaces/tal" xml:lang="es" lang="es">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>n</title>
<script type="text/javascript">
function postit(){
console.log("pompom");
var xhr = new XMLHttpRequest();
xhr.open("POST", '/test', true);
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xhr.setRequestHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8");
xhr.send("prm_0=898&prm_1=603");
}
</script>
</head>
<body>
using XMLHttpRequest..
<br/>
<button onclick="postit()">through xmlhttprequest</button>
<br/>
wrapped in a form...
<form method="POST">
<input type="hidden" name="prm_0" value="3455">
<input type="hidden" name="prm_1" value="6778">
<button type="submit">in-form</button>
</form>
</body>
When i press the button for the xhr i see in browser development tool 2 requests:
name=test, status=302, type=text,html
name=localhost, status=200, type=xhr
I can see in the console that the view callable for home is called (prints "in my view") but it does not render.
Now, when i press the form button i see in browser development tools many requests, being the most important:
name=test, status=302, type=text,html
name=localhost, status=200, type=document
and this time it does render the home page.
I tried adjusting the xhr so the headers look like the other request.
Request header sent using xhr button:
test page
POST /test HTTP/1.1
Host: localhost:6543
Connection: keep-alive
Content-Length: 19
Pragma: no-cache
Cache-Control: no-cache
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Origin: http://localhost:6543
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36 OPR/54.0.2952.54
Content-Type: application/x-www-form-urlencoded
Referer: http://localhost:6543/test
Accept-Encoding: gzip, deflate, br
Accept-Language: es-419,es;q=0.9
Cookie: pdtb_active=performance
home page
GET / HTTP/1.1
Host: localhost:6543
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36 OPR/54.0.2952.54
Referer: http://localhost:6543/test
Accept-Encoding: gzip, deflate, br
Accept-Language: es-419,es;q=0.9
Cookie: pdtb_active=performance
Now using the form button:
test page
POST /test HTTP/1.1
Host: localhost:6543
Connection: keep-alive
Content-Length: 21
Pragma: no-cache
Cache-Control: no-cache
Origin: http://localhost:6543
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36 OPR/54.0.2952.54
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer: http://localhost:6543/test
Accept-Encoding: gzip, deflate, br
Accept-Language: es-419,es;q=0.9
Cookie: pdtb_active=performance
home page
GET / HTTP/1.1
Host: localhost:6543
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36 OPR/54.0.2952.54
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer: http://localhost:6543/test
Accept-Encoding: gzip, deflate, br
Accept-Language: es-419,es;q=0.9
Cookie: pdtb_active=performance
They look the same!
Why is one interpreted as xhr and other as document?
I am thinking that if I get the xhmbutton generated request to be treated as document it may be rendered, am I right? Is this it? I think I read somewhere that the page is not rendered because of the raised exception (httpfound) but if it is so, how or when will it work?
In Calling another view in Pyramid some suggested using "render_to_response" or "subrequests", I tried without success and looking at the examples, none of them uses a declarative style for the views, what makes me think that the response that these options generate cannot be well-handled by the renderer.
What is the correct way of accomplishing this? Should I stick to forms? Why does form works but the other does not?
Duplicate? There is a little but important difference to
Calling another view in Pyramid
being that in my case I use the declarative style and the return values of the views go through the renderer defined in the decorator. I think that makes the answers of the other thread unfit for this one.

I got the answer in the pylons-discuss mail group. If i understand correctly the POST made from javascript is not the same that the POST made using the form. For this to work, javascript has to make the redirection.
changing the js script to redirect after completion it works well:
<script type="text/javascript">
function postit(){
console.log("pompom");
var xhr = new XMLHttpRequest();
xhr.open("POST", '/test', true);
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xhr.setRequestHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8");
xhr.setRequestHeader("Upgrade-Insecure-Requests", 1);
xhr.send("prm_0=898&prm_1=603");
xhr.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
window.location.replace("/");
}
};
}
</script>

Cache control in javascript request

control:no-cache` field into my request when requesting RSS feed
I cant quit figure what values should i put in
In case of Content-type it works well but it refuses to add correctly Cachce-Control
code :
options = {uri :SUPPORT_FEED_URI,
headers : {
'Content-Type': 'application/x-www-form-urlencoded',
'Cache-Control': 'no-cache'
},
}
request.get(options)
.on('error', (err) => { reject(err); })
.pipe(feedparser)
.on('end', () => { return resolve(items); });
What i get in request headers :
Accept:*/*
Accept-Encoding:gzip, deflate, sdch
Accept-Language:en-US,en;q=0.8
Access-Control-Request-Headers:cache-control <-- doesnt seems to be right Want something like Cache-Control : no-cache
Access-Control-Request-Method:GET
Connection:keep-alive
Host: xxxx.yyyy.zz
Origin:http://127.0.0.1:8888
Referer:http://127.0.0.1:8888/webconsole/
User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36
content-type:application/x-www-form-urlencoded

Your capture is a CORS pre-flight (OPTIONS) request as the URL is on a different domain or considered to be different-origin.
Such a request will not include custom headers, they are added to Access-Control-Request-Headers instead to see if the destination server will allow them.
If the destination server responds with an acceptable allow- response the subsequent GET will include your header.

Depends what you are trying to achieve.
If you are trying to force a non-cached response and dont have control over the server, one thing you can do is to add a fake query param like this.
options = {
uri :`${SUPPORT_FEED_URI}?${new Date().getTime()}`,
headers : {
'Content-Type': 'application/x-www-form-urlencoded'
},
}
For more information on the 'Cache-Control' header see the top answer here.
What's the difference between Cache-Control: max-age=0 and no-cache?

jQuery ajax request for PUT fails, but it is working with Postman

I am trying to make an ajax request like below:
function updateLastSeen() {
var url = 'http://my.url.com/conversation/' + $('#conversationId').val() + '/seen/' + $('#senderId').val();
$.ajax({
type: 'PUT',
url: url,
contentType: "application/json",
success: function(result) {
alert('Logged out')},
error: function(result) {
alert('error')
}
});
}
The request in the preflight looks like this:
Request headers
OPTIONS http://my.url.com/conversation/3/seen/3 HTTP/1.1
Host: m.url.com
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0
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
Origin: null
Access-Control-Request-Method: PUT
Connection: keep-alive
And this is the response
HTTP/1.1 200 OK
Date: Wed, 15 Apr 2015 06:16:54 GMT
Server: Apache
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: *
Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept
Keep-Alive: timeout=5, max=98
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: application/json
So according to me it should work. However I get an error that Method PUT is not allowed by Access-Control-Allow-Methods.
I also tried via Postman to see if there is a problem with the backend (which is totally obscure to me) but via Postman it works! So what am I doing wrong?
The request headers with postman:
PUT /conversation/4/seen/3 HTTP/1.1
Host: my.url.com
Connection: keep-alive
Content-Length: 0
Pragma: no-cache
Cache-Control: no-cache
Origin: chrome-extension://fdmmgilgnpjigdojojpjoooidkmcomcm
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36
Content-Type: text/plain;charset=UTF-8
Accept: */*
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8,nl;q=0.6
Cookie: _ga=GA1.2.1794721550.1428851890