Prestashop module stuck in maintanance mode - caching

I have got weird problem with my prestashop's module. I use JS script, which takes possible colors depending on the product's category and choosen language, from my module and suggest them as possible values in customization form field. When works it should look like this:
Data is beeing obtained from shop's module in myurl.com/en/module/mymodule/getcolors?prod=37 where prod is product's ID. Based on product's ID module checks which category it is and which set of colors is available and returns them as JSON response.
It worked some time, but then needed to do some changes and now on some devices it does not work anymore. It works on my home computer and in work, but it does not on my smartphone and my paretns laptop.
What happens when i enter myurl.com/en/module/mymodule/getcolors?prod=37 url?
On devices where module works i see JSON response with available colors, but on devices where module does not work i see info about prestashop's maintanace mode as the shop was offline!
I tried to:
turn on/off maintanance mode couple of times (with debug mode on and off),
manually delete smarty cache files,
manually set PS_ENABLE_SHOP to 1 in database config table
I had same problem when i started to use this module, but somehow it started to work. Any ideas what to do? It seems like some kind of problem with cache.
Edit:
https://myurl.com/en/module/mymodule/getcolors?prod=37
Host: myurl.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:72.0) Gecko/20100101 Firefox/72.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Cookie: _ga=GA1.2.1785140579.1576511420; PrestaShop-802a277372a8bab414734d0de4ba8899=def502007f9698a628f473fe5e0361b2d2ae59ea7be7280fc40ffe5d1f18095a7a9d4da956eb114678b6ff2375a7540d17f868820d39db6c4c3d67b105e9cd0ff648e45609c3f119afddb50db22b06f43ce6aa973447dca317420bf7578ae606cb7737eece27c6b935b0a68c91755218abfc300819b3698d95239d8f99791526596e9285fcbc499a4bc41d7521c6f96b1074bd4213d768d19c2ba663f22babb4277fd642881156fdfcc5f552cb48d4a30aac54d4174b4d9a153e17b7cb21c3e4a16ce808cadbf466262a949b1b5228e1d35882635f8b45bb3d8f439f; _gid=GA1.2.30008684.1579769668; PHPSESSID=subde22b0oe571kq0o0s336r27
Upgrade-Insecure-Requests: 1
GET: HTTP/1.1 500 Internal Server Error
Date: Fri, 24 Jan 2020 10:08:59 GMT
Server: Apache/2
X-Powered-By: PHP/7.0.33
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Vary: Accept-Encoding,User-Agent
Connection: close
Content-Type: text/html; charset=utf-8
X-Content-Encoding-Over-Network: gzip
Transfer-Encoding: chunked
This is the HTTPheaders on computers which seems to work. But as you can see the status of response is 500. On computers where i get maintanance mode info response's status is 307. What can be wrong?

Related

Server response to ajax call with 200 but on browser I get error 400 on Safari

I have a strange behavior on a WordPress site. It is working just fine but several users (on safari) reported seeing error 400. While testing with safari I manage to reproduce the problem with changing the user-agent of the browser. Then I started getting error 400 on each ajax call. I've checked the access.log and all request to admin-ajax.php where served with status 200. But when I check the inspector in Safari, the same ajax request got status 400. And this is happening with each and every single ajax request on every page of the site. I've tried to log out/log in, cleared all cookies, cache and etc. but the error was still there.
The site uses ClouldFlare, so I went there and checked all the security and firewall rules, I didn't found my IP blocked anywhere.
So now the question is how a response with code 200 becomes 400?
Here is also the request and response of ajax call:
Summary
URL: https://www.example.com.com/wp-admin/admin-ajax.php
Status: 400
Source: Local Override
Address: yyy.yyy.yyy.yyy:zzz
Initiator: some-script.min.js:1:2080
Request
:method: POST
:scheme: https
:authority: www.example.com.com
:path: /wp-admin/admin-ajax.php
Accept: application/json, text/plain, */*
Content-Type: application/x-www-form-urlencoded
Origin: https://www.example.com.com
Cookie: some-cookies
Content-Length: 88
Accept-Language: en-us
Host: www.example.com.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Safari/605.1.15
Referer: https://www.example.com.com/units/main/
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Response
:status: 400
Date: Wed, 27 Jan 2021 12:27:47 GMT
Referrer-Policy: strict-origin-when-cross-origin
X-Content-Type-Options: nosniff
Cache-Control: no-cache, must-revalidate, max-age=0, no-store
X-Frame-Options: SAMEORIGIN
Content-Type: text/html
Access-Control-Allow-Credentials: true
Pragma: no-cache
Set-Cookie: some-cookies
Expires: Wed, 11 Jan 1984 05:00:00 GMT
Access-Control-Allow-Origin: https://www.example.com.com
cf-edge-cache: cache,platform=wordpress
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
nel: {"max_age":604800,"report_to":"cf-nel"}
report-to: {"group":"cf-nel","endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report?s=some-token"}],"max_age":604800}
cf-cache-status: DYNAMIC
cf-request-id: 07e569767900001c377fb67000000001
cf-ray: 618278372fc81c37-SOF
x-robots-tag: noindex
Server: cloudflare
Request Data
MIME Type: application/x-www-form-urlencoded
action: my_ajax_callback
term_id: 1209
page_id
And this is the from the access.log:
xx.xxx.xx.xxx - - [24/Mar/2021:10:16:46 +0000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 12203 "https://example.com/some-page/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Safari/605.1.15"
UPDATE
I have to say that this is happening only on Safari and no other browser. Also I'm running Safari in VM with Mojave, not sure if this is related, but I though it is worthy to mention this.
I have tried to pause the CF service, and this change was visible on all other browsers but Safari continued to server the site over CF (I can see in the response header server that its value was cloudflare while on the other browsers it was nginx). I've flushed the DNS in the terminal and restarted VM a few times but this didn't changed.
I have also disabled all the security and firewall features on CloudFlare after I enabled it again but this also didn't solve the problem. I'm starting to believe that the problem lies some where in Safari and not in CF.
Try turning Cloudflare off, the setting is called "Pause Cloudflare on Site" to isolate it and see if that makes a difference. Maybe you have some goofy modsec rules in place?

How to manage Cache with Google cloud storage

I have hosted a Website in the Google Cloud storage. Its has only static files. All are working good. I have changed few pages and uploading those files back to Cloud storage. It is successfully uploaded. But those changes are not reflecting while accessing through the browser immediately. It works after some time. I couldn't find the time pattern after when it reflects.
Could any one know how to reflect the changes immediately in the browser.
I have cleared all the cache and cookies. I have used control+F5 to refresh the page but it is not working. I have tested both Firefox and Chrome. Both behaves same.
I have copied the headers content below,
Request Headers
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; 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
Connection: keep-alive
Upgrade-Insecure-Requests: 1
Pragma: no-cache
Cache-Control: no-cache
Response Headers
X-GUploader-UploadID: AEnB2UpLL0HQXX5kBesLWzBDywY7Wyry1yA7WjPEnQT0YtH-Jg4PHl5kBHAGjqiATWSZ1-AJKX9IsrPbzP4lUZvtF2IAvbqxhA
Expires: Mon, 08 May 2017 16:59:50 GMT
Date: Mon, 08 May 2017 15:59:50 GMT
Last-Modified: Mon, 08 May 2017 15:53:53 GMT
Etag: "af73f0909ae13b8cc6298d8a58640046"
x-goog-generation: 1494258833242504
x-goog-metageneration: 1
x-goog-stored-content-encoding: identity
x-goog-stored-content-length: 24795
x-goog-meta-goog-reserved-file-mtime: 1494258821
Content-Type: text/html
Content-Language: en
x-goog-hash: crc32c=fOshiQ==, md5=r3PwkJrhO4zGKY2KWGQARg==
x-goog-storage-class: REGIONAL
Accept-Ranges: bytes
Content-Length: 24795
Server: UploadServer
Cache-Control: public, max-age=3600
Age: 2128
By default, Google itself caches publicly readable objects for up to an hour. Flushing your local cache won't help. You can change this behavior by specifying a specific cache control policy when uploading an object. You can also change this property after the fact, but it won't remove the object from the cache until the hour runs out.
You can also download the new version of the object by explicitly specifying its generation, or by appending some nonsense query parameter to the URL, like ?skipCache=1234.
See Related Google cloud storage: How can I reset edge cache?
Hope helps

SPA (Single-page app) load always from cache

I have a SPA (Single-Page Application) written using OpenUI5 framework.
It works well (when I'm in debug mode or using cache-killer https://chrome.google.com/webstore/detail/cache-killer/jpfbieopdmepaolggioebjmedmclkbap) but now I have pushed the app on the server apache: here the problems started...
Users not have cache-killer installed and I would like update the app on the server and immediately have the new version of the app on the users pcs at the successive refresh.
In my app I have a series of tab: each tab have a content and I have two different content for each tab (a display fragment content and a change fragment content).
When I load the page, by default, tabs are filled by display fragments; then I press a button and the content of each tab swithc to the change fragments.
The problem is that all fragment that I retrieve after the first page loading are loaded (from cache)...
I try to use manifest application cache and the various meta-tags (see Chaching with single-page application) but the problem not change and it is still there.
This is a request-response header for the diplay fragment (correcly loaded from the server)
General:
Request URL:http://10.7.1.96/www/temp_ftp_grunt/view/tab/article/TabAnagrDisplay.fragment.xml
Request Method:GET
Status Code:304 Not Modified
Response header:
HTTP/1.1 304 Not Modified
Date: Thu, 17 Sep 2015 14:45:43 GMT
Server: Apache/2.4.7 (Win32) OpenSSL/1.0.1e PHP/5.5.6
Connection: Keep-Alive
Keep-Alive: timeout=5, max=46
ETag: "38b6-51ff07d7bfe81"
Request Header:
GET /www/temp_ftp_grunt/view/tab/article/TabAnagrDisplay.fragment.xml HTTP/1.1
Host: 10.7.1.96
Connection: keep-alive
Cache-Control: max-age=0
Accept: application/xml, text/xml, */*; q=0.01
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.93 Safari/537.36
Referer: http://10.7.1.96/www/temp_ftp_grunt/
Accept-Encoding: gzip, deflate, sdch
Accept-Language: it,en-US;q=0.8,en;q=0.6
If-None-Match: "38b6-51ff07d7bfe81"
If-Modified-Since: Thu, 17 Sep 2015 12:24:01 GMT
and this for the change fragment loaded from cache
General:
Request URL:http://10.7.1.96/www/temp_ftp_grunt/view/tab/article/TabAnagrChange.fragment.xml
Request Method:GET
Status Code:200 OK (from cache)
Response header:
Accept-Ranges:bytes
Content-Length:23642
Content-Type:application/xml
Date:Thu, 17 Sep 2015 14:44:47 GMT
ETag:"5c5a-51ff1965857b1"
Last-Modified:Thu, 17 Sep 2015 13:42:33 GMT
Server:Apache/2.4.7 (Win32) OpenSSL/1.0.1e PHP/5.5.6"
Request Header:
Provisional headers are shown
Accept:application/xml, text/xml, */*; q=0.01
Referer:http://10.7.1.96/www/temp_ftp_grunt/
User-Agent:Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.93 Safari/537.36
X-Requested-With:XMLHttpRequest
For OpenUI5 developers: I have loaded the fragment in this moode:
1.display fragments in onInit function of the controller that contain the list of tabs
var oTab = new sap.m.IconTabFilter();
oTab.addContent(myfragment);
tabBar.addItem(oTab);
2.change fragments by a function that remove the display frg by tabBar.removeAllItems(); and add the new frg in the same mode of 1.
I have tried to find a solution to my problem; I have read this https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/http-caching and this http://alistapart.com/article/application-cache-is-a-douchebag articles but I can't find the solution for my problem. Cache buster https://openui5.hana.ondemand.com/#docs/guide/91f080966f4d1014b6dd926db0e91070.html suggested here Force clear cache in OpenUI5 require a SAP backend
We had the same problem and managed by defining a new path for fragments
sap.ui.localResources("fragments");
By default, fragments was in the same folder than Libraries (resources) and always caching.

Redirects stopped working in Firefox

I'm stumped, my website was working fine and now on Firefox suddenly the redirects stopped working.
I've tested IE and Chrome and going to /login redirects me to /dashboard however on Firefox the page is blank (no output sent) and no errors are logged. So this is why I'm assuming it to be a browser related issue. It might be due to a firefox update, but not sure how to confirm that.
Here are the headers:
Request Headers
GET /login HTTP/1.1
Host: local.example.com
User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0 FirePHP/0.7.4
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
DNT: 1
Cookie: __utma=34805930.947644602.1372214584.1380730296.1380733154.30; __utmz=34805930.1378700053.15.2.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided); __utma=214248714.242656582.1377296111.1380047082.1380734348.30; __utmz=214248714.1377296111.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __qca=P0-705514134-1378344178153; __utmc=34805930; __utmb=34805930.15.10.1380733154; __utmb=214248714.5.10.1380734348; __utmc=214248714; PHPSESSID=lli8i30qkhvohfm9ufkbdvbki0
x-insight: activate
Connection: keep-alive
Response Headers
HTTP/1.1 302 Found
Date: Wed, 02 Oct 2013 17:30:58 GMT
Server: Apache/2.4.3 (Win32) OpenSSL/1.0.1c PHP/5.4.7
X-Powered-By: PHP/5.4.7
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Location: /dashboard
Content-Length: 0
Keep-Alive: timeout=5, max=98
Connection: Keep-Alive
Content-Type: text/html; charset=utf-8
It all looks pretty standard to me, however FF stays stuck on /login Am I missing something?
This behaviour is both on my local windows host and my remote amazon Linux web-server. The body is empty...
How could I go about debugging this?
The Expires header field in the response is really off. Firefox probably does not bother to render stale responses.
Please check the system time in your server. It is possible it is an Amazon problem, but it is also possible that one of the server users set the system time.
You can look into setting up a Network Time Protocol (NTP) client to run regularly (with ntpd), if you don't have that yet.
I would fire up Fiddler to see what bits actually went over the wire. Among other information, Fiddler will show what content type is actually used during the HTTP request / response.
This could be related to the fact that there is no extension. Firefox could be having trouble determining if this is a document or folder. Try firebug and see what URL Firefox tries to request after the redirect.

Can not log out from Tomcat using Firefox

I've encountered quite unexpected problem using Tomcat and CAS authorization. I just cannot logout in Firefox. I'm redirected to the logout page, but as soon as I reenter application url in the address bar, it is opened as if I'm logged (and I'm logged actually!).
First I've take a notable amount of attempts to fix something in tomcat config, then I've read logs, but nothing helped me actually before it comes up to my mind to check logout behavior in other browsers.
In other browsers everything work just as expected.
And I'm just stuck and would appreciate if one will give me a hint.
I guess [this question][1] is in some way relative with mine, but, helas, disabling caching on the page which should me logouted doesn't help either.
UPD: Some debug information. Firefox's version is 7.0.1, unfortunately, it is not a public application and I can not provide any url. It looks like response.sendRedirect output is something that Firefox is missing. Here is minimal code that works in any browser except Firefox.
session.invalidate();
response.sendRedirect("https://app:8552/cas/logout");
HEADERS
1st REQUEST - which invalidates session and redirect to CAS logout page
REQUEST HEADERS
Host: dev.service.net
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
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
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Connection: keep-alive
Referer: http://dev.service.net/
Cookie: JSESSIONID=53B9469EFE9F130E9694F7406BFAB755
RESPONSE HEADERS
Server: nginx/1.0.4
Date: Thu, 20 Oct 2011 09:20:45 GMT
Content-Type: text/html
Content-Length: 184
Location: https://dev:8552/cas/logout
2nd REQUEST - cas logout page itself
REQUEST HEADERS
Host: dev:8552
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
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
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Connection: keep-alive
Referer: http://dev.service.net/
Cookie: JSESSIONID=8A68F008825A0F0D14C6BF803E1332CF; GUEST_LANGUAGE_ID=en_US; COOKIE_SUPPORT=true
RESPONSE HEADERS
Server: Apache-Coyote/1.1
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Cache-Control: no-cache, no-store
Content-Type: text/html;charset=UTF-8
Content-Language: en-US
Content-Length: 1226
Date: Thu, 20 Oct 2011 15:53:57 GMT
3rd REQUEST - we are retuninig to the page which actually should
redirect us to login page, but it does not.
REQUEST HEADERS
Host: dev.service.net
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
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
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Connection: keep-alive
Cookie: JSESSIONID=53B9469EFE9F130E9694F7406BFAB755
RESPONSE HEADERS
Server: Apache-Coyote/1.1
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Cache-Control: no-cache, no-store
Content-Type: text/html;charset=UTF-8
Content-Language: en-US
Content-Length: 1226
Date: Thu, 20 Oct 2011 13:30:51 GMT
According to the headers, you're maintaining two different sessions on two different hosts. When you request a logout on the first host, you're redirected to the second host (which uses a different session cookie). The session cookie of the second host is in turn indeed invalidated (according to the presence of the Set-Cookie header). But based on the last request, the session has not been recreated on the server side (there is no Set-Cookie header). This means that session.invalidate() before response.sendRedirect() has failed somehow, or that the page is actually requested from the browser cache.
In Firebug you should be able to see if the page is requested from the browser cache by checking the text color of the request in the Net tab. If it's grayed out, then it means that it's been served from the browser cache. For Firefox, the must-revalidate header is actually mandatory next to the no-cache, no-store headers. You need to configure your server to add that entry to the header, or to change/create a Filter for that.
See also:
How to control web page caching, across all browsers?

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