Whenever flexible_table is being used for exporting data the page MUST NOT print standard header or footer (or anything else for that matter). The only thing that should be executed is table setup and out.
So either a custom theme is used that messes this or the code itself is incorrect. If any of you uses some custom theme try with some stock theme just for the sake of testing.
Anyone find a solution for this issue yet ? changing to default clean theme doesn't help. moodle 3.5.1
Hi,
did the problem appear with all the export ? I mean if you do it on another course did you have the same error ?
Because, in fact, it seems to have special character in the course title (has it already remarked).
Hi Dominique!
This problem appear with all the export in another courses.
Sorry, i found desicion of this problem.
Add in lib/dataformatlib.php ob_clean(); and comment exception and in /lib/tablelib.php ob_clean(); and comment exception
