Support forumCategory: BugsError 400
Jack Wright asked 3 months ago

Whenever I try to save the options in the admin screen (i.e. add a location) I get a HTTP error 400.
My WordPress version is 5.7.
Plugin version is version 3.4.6.
I did start seeing this issue since I upgraded the plugin to 3.4.6 from the very previous version.
I cannot replicate this issue on a Windows machine using WAMP. However, I do get the issue on a server with cPanel with network protections in place. I will contact them later today to see if it is an issue on their end.
POST data:
{“name”:”dfgfd”,”address”:”dfgfdg”,”location”:”dfgfdgfd”,”id”:null}
POST request headers:
POST /wp-admin/admin-ajax.php?&_wpnonce=15c9754b37&action=ea_location HTTP/1.1
Host: hiddendomain.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0
Accept: application/json, text/plain, */*
Accept-Language: en-GB,en;q=0.5
Accept-Encoding: gzip, deflate, br
Referer: https://hiddendomain.com/wp-admin/admin.php?page=easy_app_locations
Content-Type: text/json
Content-Length: 67
Origin: (hidden)
Connection: keep-alive
Cookie: wordpress_sec_71538dbe42b038b9a65e46110e6471a5=admin%7C1616673393%7Cry5QXkcVDe4M7myFHPDTuB2rqKomMdkzagLywEPlHoA%7C6eaf4f796a3fb5dbfed2ef1b6d57bf91ce14833455ba49efeb403ec022ab1790; hip=74bebadc73dfd4aadeca1b1aa1fa137e; __stripe_mid=d41c5db8-3407-4692-901a-17e7571af9916caac0; wp-settings-1=editor%3Dtinymce%26libraryContent%3Dbrowse; wp-settings-time-1=1616498002; wordpress_test_cookie=WP+Cookie+check; PHPSESSID=b9dbd4a99d4f2ba0005bbe731dd77df5; wordpress_logged_in_71538dbe42b038b9a65e46110e6471a5=admin%7C1616673393%7Cry5QXkcVDe4M7myFHPDTuB2rqKomMdkzagLywEPlHoA%7Cfbdd2678aabce5c82668915c69a7c500d070c1e19b7b9ca805678e0d2bd8c18b
Response headers:
HTTP/2 400 Bad Request
date: Tue, 23 Mar 2021 12:22:29 GMT
server: Apache
x-powered-by: PHP/7.1.33
x-robots-tag: noindex
expires: Wed, 11 Jan 1984 05:00:00 GMT
cache-control: no-cache, must-revalidate, max-age=0
referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff, nosniff
x-xss-protection: 1; mode=block
x-frame-options: SAMEORIGIN, SAMEORIGIN, SAMEORIGIN
content-type: text/html; charset=UTF-8
X-Firefox-Spdy: h2
Response:
{“err”:true}
 
Any help would get greatly appreciated!

5 Answers
Nikola Loncar Staff answered 3 months ago

Hi, can you please tell me do you have issues when you try to save some other thing. For example adding the location?

Best regards,
Nikola

jackawardls replied 3 months ago

I cant add locations, workers or services. But I can save settings and create other WordPress pages and posts (which also use AJAX).

Nikola Loncar Staff replied 3 months ago

Hi, thanks for update it will be fixed during the day.

Best regards,
Nikola

jackawardls replied 3 months ago

Have you identified it as a plugin issue?

Nikola Loncar Staff replied 3 months ago

Some hosting providers are blocking requests with some header values. We will alter those values from EA side. This effects some of users. For example if you try locally on Wamp there will be no issues.

Best regards,
Nikola

jackawardls replied 3 months ago

Ooh what you said makes a lot of sense! Thanks a lot!

jackawardls replied 3 months ago

Which header is the most problematic?

Nikola Loncar Staff replied 3 months ago

Content type was text/json and it should be application/json in order to pass

jackawardls replied 3 months ago

I have just edited my local copy of your plugin and have confirmed that does indeed fix the issue!

Could you please let me know when this new version is available at jack@awardls.com?

Many thanks!

ArleyMcB replied 1 month ago

What files specifically did you edit?

ArleyMcB answered 1 month ago

I am also having this issue on a clinic site (https://atwellcentre.ca/booking) – “GET https://atwellcentre.ca/wp-admin/admin-ajax.php?location=1&service=3&worker=1&date=2021-05-14&end_date=2021-05-14&start=09%3A00&check=2e12ba8bab&action=ea_res_appointment 400”
Which is rough, it worked flawlessly on staging… 
I recognize this is an issue with our server, any help is appreciated. This is an excellent plugin!

Nikola Loncar Staff answered 1 month ago

Hi do you have caching engine on that site? Maybe it’s caching nonce value.

Best regards,
Nikola

ArleyMcB replied 1 month ago

There are no caching plugins, but I’ll ask the host as there have been other weird things I can’t configure myself. Thanks!

chrslcy answered 1 week ago

I’m having a similar issue on one of my client’s site. Has this been resolved?
The site is running these versions:

  • WordPress: 5.7.2
  • Easy Appointments: 3.5.2

When I switch to troubleshooting mode with all plugins disabled except Easy Appointments and the default WordPress theme activated, I’m still getting the problem when trying to add or edit Services. All other admin pages are unaffected.
Here are the headers:
General
Request URL:
https://www.hiddendomain.com/wp-admin/admin-ajax.php?&_wpnonce=4a1215982a&action=ea_service&id=1&_method=PUT
Request Method:
POST
Status Code:
400
Remote Address:
45.8.225.243:443
Referrer Policy:
strict-origin-when-cross-origin
Response Headers
access-control-allow-credentials:
true
access-control-allow-origin:
https://www.hiddendomain.com
access-control-allow-origin:
https://www.hiddendomain.com
cache-control:
no-cache, must-revalidate, max-age=0
content-type:
text/html; charset=UTF-8
date:
Wed, 09 Jun 2021 09:30:10 GMT
expires:
Wed, 11 Jan 1984 05:00:00 GMT
referrer-policy:
strict-origin-when-cross-origin
server:
Apache
x-content-type-options:
nosniff
x-frame-options:
SAMEORIGIN
x-robots-tag:
noindex
Request Headers
:authority:
http://www.hiddendomain.com
:method:
POST
:path:
/wp-admin/admin-ajax.php?&_wpnonce=4a1215982a&action=ea_service&id=1&_method=PUT
:scheme:
https
accept:
application/json, text/plain, */*
accept-encoding:
gzip, deflate, br
accept-language:
en-GB,en;q=0.9,en-US;q=0.8,en-ZA;q=0.7,en-NZ;q=0.6,en-IN;q=0.5,en-CA;q=0.4,en-AU;q=0.3,cy;q=0.2,hu;q=0.1
content-length:
121
content-type:
application/json
cookie:
wordpress_sec_eb77aea8c677453ff37cba17a307aa8e=sch-admin%7C1623354060%7Co8TwMgPKSf1mFcZKcu740wbyCyAXCf2cOhGOTYl1aEQ%7Cc0a1dcfb898ca539283a627459650669a4125b4ea6fcf6b1e45d3c1a201c90c0; PHPSESSID=44a1ce32605f683c189cf1bb98f1e58a; wordpress_test_cookie=WP%20Cookie%20check; wordpress_logged_in_eb77aea8c677453ff37cba17a307aa8e=sch-admin%7C1623354060%7Co8TwMgPKSf1mFcZKcu740wbyCyAXCf2cOhGOTYl1aEQ%7Ce12569884d43c731768d7eb26b4d50faf22f9b5bd9fb3e40b3a3b6d52e064242; wp-settings-1=editor%3Dtinymce%26libraryContent%3Dbrowse%26unfold%3D1%26mfold%3Do%26imgsize%3Dthumbnail%26advImgDetails%3Dshow%26post_dfw%3Doff%26posts_list_mode%3Dlist; wp-settings-time-1=1623181261; wp-health-check-disable-plugins=817bff9a882c018e4d4ddfcefea9fbee
origin:
https://www.hiddendomain.com
referer:
https://www.hiddendomain.com/wp-admin/admin.php?page=easy_app_services
sec-ch-ua:
” Not;A Brand”;v=”99″, “Google Chrome”;v=”91″, “Chromium”;v=”91″
sec-ch-ua-mobile:
?0
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/91.0.4472.77 Safari/537.36
Response
{“err”:true}
Any assistance would be greatly appreciated.
Thanks,
Chris

ArleyMcB replied 1 week ago

For me the solution was cache. Not in the form of a plugin, but the webhost had it. I was on the support chat a few times to sort that out.

Nikola Loncar Staff answered 5 days ago

@chrslcy can you please turn on compatibility mode on inside EA Settings. Looks like PUT method is blocked by your hosting. Also clear cache as mentioned before.

Best regards,
Nikola