HTTP POST request results in "ERROR 405: Method Not Allowed" - http

Question

I'm trying to do a simple HTTP POST on the following website:
https://oktap.tax.ok.gov/oktap/web/_/
(click on "Permits" in the bottom left hand side)
I simply want to post a number and get the results from the page returned. Looking at the page with chrome's web developer tools it looks like the POST goes to both
https://oktap.tax.ok.gov/oktap/web/_/Recalc
https://oktap.tax.ok.gov/oktap/web/_/EventOccurred
I'm not sure if it's one or the other, it looks like EventOccured takes a couple more parameters. However when I post to either one of them with the following code:
#!/usr/bin/env bash
wget --post-data="D0IHwpHb__0_0_Ful0QW=5&VIEW__=VS_PermitSearch&LASTFOCUSFIELD__=D0IHwpHb__0_0_Ful0QW&DOC_MODAL_ID__=0&EVENT__=D0IHwpHb__0_0_Ful0QW&DOC_ACTION__=false&TYPE__=1&CLOSECONFIRMED__=false&FAST_VERLAST__=9.CvUZWPROHiWR-EO6d9UAeHYv4m81" \
-U "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547 Safari/537.36" \
https://oktap.tax.ok.gov/oktap/web/_/EventOccurred
First I get 307 Temporary Redirect and then ERROR 405: Method Not Allowed.
I don't see how the a post is not allowed, when it's clearly being made from the browser just fine. Any Help?
Here's the headers:
Request URL:https://oktap.tax.ok.gov/oktap/web/_/Recalc
Request Method:POST
Status Code:200 OK
Request Headersview source
Accept:application/json, text/javascript, */*; q=0.01
Accept-Encoding:gzip,deflate,sdch
Accept-Language:en-US,en;q=0.8
Connection:keep-alive
Content-Length:146
Content-Type:application/x-www-form-urlencoded
Cookie:wdc-session=w0srLHI6Tz9tDLtEDo0n33PNuXSFexxysEHBa9v5dtjXBt/X4cKb9zKdxoVrtyDKseewwZMbU41vn3DLmyf0QUUjtKwXdmEhHtS69aZf94Y26cqd95rsiCKg06SQVIm5p63me/C2chBBapoABa1lJ8lf4F3MbBIiBAnCnbKlgVfXtsjpijt9i2PMILjlAalr
Host:oktap.tax.ok.gov
Origin:https://oktap.tax.ok.gov
Referer:https://oktap.tax.ok.gov/oktap/web/_/
User-Agent:Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/31.0.1650.4 Chrome/31.0.1650.4 Safari/537.36
X-Requested-With:XMLHttpRequest
Form Dataview sourceview URL encoded
D0IHwpHb__0_0_Ful0QW:5
VIEW__:VS_PermitSearch
LASTFOCUSFIELD__:D0IHwpHb__0_0_Ful0QW
DOC_MODAL_ID__:0
FAST_VERLAST__:3.2sMmdbnwgvAQF41H3c_2XHozyeA1
Response Headersview source
Cache-Control:no-cache, no-store, max-age=0, must-revalidate
Content-Encoding:gzip
Content-Language:en, en-US
Content-Length:318
Content-Type:application/json; charset=utf-8
Date:Thu, 03 Oct 2013 19:52:52 GMT
Expires:Fri, 01 Jan 1990 00:00:00 GMT
Pragma:no-cache
Server:Microsoft-HTTPAPI/2.0
Set-Cookie:wdc-session=w0srLHI6Tz9tDLtEDo0n33PNuXSFexxysEHBa9v5dtjXBt/X4cKb9zKdxoVrtyDKseewwZMbU41vn3DLmyf0QUUjtKwXdmEhHtS69aZf94Y26cqd95rsiCKg06SQVIm5p63me/C2chBBapoABa1lJ8lf4F3MbBIiBAnCnbKlgVfXtsjpijt9i2PMILjlAalr; path=/oktap/web/; HttpOnly; Secure;
X-Frame-Options:DENY
and
Request URL:https://oktap.tax.ok.gov/oktap/web/_/EventOccurred
Request Method:POST
Status Code:200 OK
Request Headersview source
Accept:application/json, text/javascript, */*; q=0.01
Accept-Encoding:gzip,deflate,sdch
Accept-Language:en-US,en;q=0.8
Connection:keep-alive
Content-Length:226
Content-Type:application/x-www-form-urlencoded
Cookie:wdc-session=w0srLHI6Tz9tDLtEDo0n33PNuXSFexxysEHBa9v5dtjXBt/X4cKb9zKdxoVrtyDKseewwZMbU41vn3DLmyf0QUUjtKwXdmEhHtS69aZf94Y26cqd95rsiCKg06SQVIm5p63me/C2chBBapoABa1lJ8lf4F3MbBIiBAnCnbKlgVfXtsjpijt9i2PMILjlAalr
Host:oktap.tax.ok.gov
Origin:https://oktap.tax.ok.gov
Referer:https://oktap.tax.ok.gov/oktap/web/_/
User-Agent:Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/31.0.1650.4 Chrome/31.0.1650.4 Safari/537.36
X-Requested-With:XMLHttpRequest
Form Dataview sourceview URL encoded
D0IHwpHb__0_0_Ful0QW:5
VIEW__:VS_PermitSearch
LASTFOCUSFIELD__:D0IHwpHb__0_0_Ful0QW
DOC_MODAL_ID__:0
EVENT__:D0IHwpHb__0_0_Ful0QW
DOC_ACTION__:false
TYPE__:1
CLOSECONFIRMED__:false
FAST_VERLAST__:4.Ol_i_B9mDsWsP0Mg0e02_y7OZjM1
Response Headersview source
Cache-Control:no-cache, no-store, max-age=0, must-revalidate
Content-Encoding:gzip
Content-Language:en, en-US
Content-Length:3711
Content-Type:application/json; charset=utf-8
Date:Thu, 03 Oct 2013 19:52:52 GMT
Expires:Fri, 01 Jan 1990 00:00:00 GMT
Pragma:no-cache
Server:Microsoft-HTTPAPI/2.0
Set-Cookie:wdc-session=w0srLHI6Tz9tDLtEDo0n33PNuXSFexxysEHBa9v5dtjXBt/X4cKb9zKdxoVrtyDKseewwZMbU41vn3DLmyf0QUUjtKwXdmEhHtS69aZf94Y26cqd95rsiCKg06SQVIm5p63me/C2chBBapoABa1lJ8lf4F3MbBIiBAnCnbKlgVfXtsjpijt9i2PMILjlAalr; path=/oktap/web/; HttpOnly; Secure;
X-Frame-Options:DENY

Answer 1

As a developer for that company, I would not recommend looking up permits that way. For $150 per year you can get a file with this information.
Contact the OTC. http://www.tax.ok.gov/rules/rule6507.pdf - 710:65-9-6. Subscription to sales tax permit list