Error: TypeError: can't define property "Promise": Object is not extensible ( leaflet.ajax.js:513:1 ) about leaflet-ajax HOT 7 OPEN

I think this error was introduced at Leaflet 1.1.0. I noticed it on an app I recently upgraded, but don't notice it when using 1.0.3.

from leaflet-ajax.

yeah I have a pull request on leaflet to fix this regression

from leaflet-ajax.

what is your environment you're running this in?

from leaflet-ajax.

I have the same issue. For my part I put the scripts in the head section. I am running it in Firefox 54.0.1 (32-bit). I get the same error in Chrome 59.0.3071.115 64 bit. Do you need other details about the environment?

from leaflet-ajax.

I have downgraded my Leaflet to 1.0.3 for now to make it work. Thanks @calvinmetcalf for a quick response.

from leaflet-ajax.

@calvinmetcalf - can you ref that pull request here please? want to know if i can go with 1.2 or back to 1.0.3

from leaflet-ajax.

just tried it with leaflet 1.2 - works for me.

from leaflet-ajax.