Thorsten

this seems to be a duplicate of [#121](https://github.com/highcharts/highcharts-editor/issues/121) you can fix it with the following php snippet: ```php add_action('admin_print_footer_scripts', function(){ echo "highed.option({'includeCDNInExport': false})"; }); ```

I'm having a similar problem: the only headers i can see are: 'cache-control', 'content-type' and 'expires'. I can see more headers in chrome devtools, too. And i really need to...

Since this is an issue with the browser side implementation (https://github.com/github/fetch) of this package, doesn't this issue belong there? Also, i think my problems are probably caused by some missing...