'url.indexof is not a function' when I try to embed a new draw.io diagram on a confluence page

Question

Hi,

I'm trying to embed a new draw.io diagram onto a confluence page.  I've already added a number of diagrams already without issue, but now instead of showiong the selection box for the type of diagram, draw.io is throwing the error 'url.indexof is not a function'.

If I click 'ok' on the error, there is an untitled diagram (not mine) which shows what looks like a simple hierarchy diagram.

I cant delete what is there because it then throws an error ; 'Error: Uncaught TypeError: src.substring is not a function'.

The problem is only happening on this particular confluence page.

Any help would be much appreciated.

Thanks

Ian

Ian Potts · Answer

Hi David,

The diagram doesn't exist yet.  I'm creating a new Draw.io diagram.

Usually, when draw.io loads, there is a template selection window.  The error appears instead of that.

David Benson _draw_io_ · Answer

Where is the draw.io diagram stored? How are you embedding it?