Summary

An add-on developer needed to create a page /secure/com.acme.addon.Configuration.jspa. But could not because this page always redirects to a page which says 'Classic boards are no longer available.'

Environment

Does not seem to be environment specific

Steps to Reproduce

1. You can reproduce by opening any of the pages below (Note : This is just to highlight that these pages behave that way and as such we expect all Atlassian URL to behave the same way)
   1. https://<instance>.atlassian.net/secure/com.myin.wth.Configuration.jspa.
   2. https://<instance>.atlassian.net/secure/com.acme.addon.Configuration.jspa.
2. You will come to a page that says 'Classic boards are no longer available'

   Expected Results

1. For the add-on developer , the actual content of the page above if valid should be displayed.
2. For the normal instances , this page should hit a dead link page
3. In a normal instance this is the error message of 404 in Debug console HTTP

   GET https://xxxxx.atlassian.net/secure/com.myin.wth.Configurat.jspa HTTP/1.1
   Host: xxxxx.atlassian.net
   User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0
   Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
   Accept-Language: en-GB,en;q=0.5
   Accept-Encoding: gzip, deflate, br
   Cookie: __utma=24233324.3217914.1490877205.1500896621.1501182330.10; __utmz=24233324.1500883109.7.4.utmcsr=id.atlassian.com|utmccn=(referral)|utmcmd=referral|utmcct=/; atlassian.xsrf.token=BLSJ-WYOR-1EUH-AMUD|73f7aac85785a905ccb7c3fe6ec08c1e6d8669c1|lout; JSESSIONID=4E410F03B04ED04EDB754F5273F90E89; __utmb=24233324.2.10.1501182330; __utmc=24233324; __utmt=1
   HTTP/?.? 404 Not Found
   Server: nginx
   Date: Thu, 27 Jul 2017 19:09:03 GMT
   Content-Type: text/html;charset=UTF-8
   Vary: Accept-Encoding
   x-arequestid: 189x3457x1
   Cache-Control: no-cache, no-store, must-revalidate
   Pragma: no-cache
   Expires: Thu, 01 Jan 1970 00:00:00 GMT
   x-ausername: anonymous
   x-atenant-id: xxxxx.atlassian.net
   X-Content-Type-Options: nosniff
   Content-Encoding: gzip
   X-Firefox-Spdy: h2
   

   Actual Results

1. No matter in which scenario , you will see a page that says 'Classic boards are no longer available.'
2. The HTTP Debug console shows the following
   1. GET https://xxxxx.atlassian.net/secure/com.myin.wth.Configuration.jspa HTTP/1.1

      Host: xxxxx.atlassian.net
      User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0
      Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
      Accept-Language: en-GB,en;q=0.5
      Accept-Encoding: gzip, deflate, br
      Cookie: __utma=24233324.3217914.1490877205.1500896621.1501182330.10; __utmz=24233324.1500883109.7.4.utmcsr=id.atlassian.com|utmccn=(referral)|utmcmd=referral|utmcct=/; atlassian.xsrf.token=BLSJ-WYOR-1EUH-AMUD|73f7aac85785a905ccb7c3fe6ec08c1e6d8669c1|lout; JSESSIONID=4E410F03B04ED04EDB754F5273F90E89; __utmb=24233324.2.10.1501182330; __utmc=24233324; __utmt=1
      HTTP/?.? 200 OK
      Server: nginx
      Date: Thu, 27 Jul 2017 19:13:40 GMT
      Content-Type: text/html;charset=UTF-8
      Vary: Accept-Encoding
      x-arequestid: 193x3465x1
      Cache-Control: no-cache, no-store, must-revalidate
      Pragma: no-cache
      Expires: Thu, 01 Jan 1970 00:00:00 GMT
      x-ausername: anonymous
      X-Content-Type-Options: nosniff
      Strict-Transport-Security: max-age=315360000;includeSubDomains
      Content-Encoding: gzip
      X-Firefox-Spdy: h2
      

      POST https://xxxxx.atlassian.net/rest/webResources/1.0/resources HTTP/1.1

      Host: xxxxx.atlassian.net
      User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0
      Accept: application/json, text/javascript, */*; q=0.01
      Accept-Language: en-GB,en;q=0.5
      Accept-Encoding: gzip, deflate, br
      Content-Type: application/json
      X-Requested-With: XMLHttpRequest
      Referer: https://xxxxx.atlassian.net/secure/com.myin.wth.Configuration.jspa
      Content-Length: 216
      Cookie: __utma=24233324.3217914.1490877205.1500896621.1501182330.10; __utmz=24233324.1500883109.7.4.utmcsr=id.atlassian.com|utmccn=(referral)|utmcmd=referral|utmcct=/; atlassian.xsrf.token=BLSJ-WYOR-1EUH-AMUD|73f7aac85785a905ccb7c3fe6ec08c1e6d8669c1|lout; JSESSIONID=4E410F03B04ED04EDB754F5273F90E89; __utmb=24233324.2.10.1501182330; __utmc=24233324; __utmt=1
      HTTP/?.? 200 OK
      Server: nginx
      Date: Thu, 27 Jul 2017 19:13:41 GMT
      Content-Type: application/json;charset=UTF-8
      Vary: Accept-Encoding
      x-arequestid: 193x3466x1
      x-ausername: anonymous
      x-atenant-id: xxxxx.atlassian.net
      Cache-Control: no-cache, no-store, no-transform
      X-Content-Type-Options: nosniff
      Strict-Transport-Security: max-age=315360000;includeSubDomains
      Content-Encoding: gzip
      X-Firefox-Spdy: h2
      

      GET https://xxxxx.atlassian.net/rest/pas/latest/announcement?_=1501182820270 HTTP/1.1

      Host: xxxxx.atlassian.net
      User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0
      Accept: */*
      Accept-Language: en-GB,en;q=0.5
      Accept-Encoding: gzip, deflate, br
      Content-Type: application/json
      X-Requested-With: XMLHttpRequest
      Referer: https://xxxxx.atlassian.net/secure/com.myin.wth.Configuration.jspa
      Cookie: __utma=24233324.3217914.1490877205.1500896621.1501182330.10; __utmz=24233324.1500883109.7.4.utmcsr=id.atlassian.com|utmccn=(referral)|utmcmd=referral|utmcct=/; atlassian.xsrf.token=BLSJ-WYOR-1EUH-AMUD|73f7aac85785a905ccb7c3fe6ec08c1e6d8669c1|lout; JSESSIONID=4E410F03B04ED04EDB754F5273F90E89; __utmb=24233324.3.10.1501182330; __utmc=24233324; __utmt=1
      HTTP/?.? 401 Unauthorized
      Server: nginx
      Date: Thu, 27 Jul 2017 19:13:41 GMT
      Content-Type: application/xml;charset=UTF-8
      Content-Length: 174
      x-arequestid: 193x3468x1
      x-ausername: anonymous
      x-atenant-id: xxxxx.atlassian.net
      Cache-Control: no-transform
      X-Content-Type-Options: nosniff
      Vary: Accept
      WWW-Authenticate: OAuth realm="https%3A%2F%2Fxxxxx.atlassian.net"
      X-Firefox-Spdy: h2
      

      Notes

Customer feels this is an annoyance and at least should be public fronting so other developers like him will not face the same issue

Workaround

Issue can be easily worked around by using any other URL instead of 'Configuration.jspa'