What version are you running?
2.5.15
What's the URL of the page containing the problem?
/dashboard/
What steps will reproduce the problem?

Go to reviewboard dashboard
Select on Notifications Incoming or any other tab with 2 pages
Make sure selection on top says "Show archived". i.e. archives are not shown
Navigate to page 2
Click on archive.
Select all reviews using the checkbox in the table header
Notice reviews do not archive as expected and error in the browser console. 

What is the expected output? What do you see instead?
I should not see the error. Also, the reviews should get archived.
What operating system are you using? What browser?
Linux/Chrome

Please provide any additional information below.
On my reviewboard dashboard, I have a very large count of incoming notifications. When trying to archive the reviews I got the below error and the reviews did not archive.
jquery-1.11.1.min.8101d596b2b8.js:4 GET http://reviewboard.mycompany.com/dashboard/?type=in&page=2&view=optional&show-archived=0 404 (NOT FOUND)