Use form POST request when clearing session data #608
Merged
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This builds on the work done in #588.
Previously the ‘clear data’ feature used two GET requests – one to display the confirmation screen, and a second to actually clear the session data. This is not ideal because GET requests are meant to be nullipotent (to have no side effects), and links from the docs part of the kit were still pointing to the old URL, which bypassed the confirmation screen.
This adds a form to the confirmation screen which POSTs to itself (/prototype-admin/clear-data), and changes the old data-clearing route to match.