Hello,
I use the MetaMagik plugin to export Tasks in a csv file.
I have some options to choose there are Subtasks, Task transition, Daily project summary and Tasks.
The only thing is that the Tasks didnt export the project as csv it forwarded me to a blank page.
The other options work well.
The character encoding of the HTML document was not declared. The document will render with garbled text in some browser configurations if the document contains characters from outside the US-ASCII range. The character encoding of the page must be declared in the document or in the transfer protocol.
I’m saying, that if the error cannot be duplicated, on my server, I will have a tough time solving your issue, as it probably is related to your server setup.
Sorry to pull out such an old thread, but maybe it will be useful to someone someday. I had the same problem, it turned out the fault was on the server side I had the upstreams timeout set to 8s as the default value and the report took longer to generate and it redirected me to a white page with that address as above in the thread. by changing it to 30s it solved the problem.