Issue with uploading files in Django >= 1.10

[ekini]

There is Django setting DATA_UPLOAD_MAX_MEMORY_SIZE.

The maximum size in bytes that a request body may be before a SuspiciousOperation (RequestDataTooBig) is raised. The check is done when accessing request.body or request.POST and is calculated against the total request size excluding any file upload data.

So that we never need to modify this setting to upload files.

But Wagtail Enforcer somehow mangles requests, so that the files sizes are included into the calculation. So by default, it limits the size by 2.5Mb.

[PeterDekkers]

Good to know. Thanks for reporting @ekini.