topic Re: Measurement widget does not work on disconnected Environment in ArcGIS JavaScript Maps SDK Questions

Measurement widget does not work on disconnected Environment

YObaidat — Sun, 21 Feb 2021 11:10:12 GMT

When deploying JS API version 4.18 on Winodws/IIS everything works very well expect the measurement tool. When no internet and start using measurement widget it requests a file from https://static.arcgis.com/fonts/arial-unicode-ms-regular/0-255.pbf.

And since no internet is available on the user's machine he is not able to use the widget properly.

I hope someone at esri can provide a solution for this issue.

Thanks,

Re: Measurement widget does not work on disconnected Environment

Noah-Sager — Thu, 25 Feb 2021 17:53:27 GMT

Hi @YObaidat, there should be a fallback font available for the Measurement widget to use. Is that not happening? What does it mean that the widget cannot be used properly?

Re: Measurement widget does not work on disconnected Environment

YObaidat — Thu, 25 Feb 2021 18:50:29 GMT

Hi @Noah-Sager . Exactly the locally hosted API doesn't fallback to a locally hosted font . As you can see in the attached snapshots. I hosted 4.18 API on windows IIS on a local server and when using the measurement widget without internet, the symbology of the measurement graphic on the map appears incomplete.

Re: Measurement widget does not work on disconnected Environment

Noah-Sager — Thu, 25 Feb 2021 18:56:52 GMT

Is that app running over http or https? What's in the console? What happens with Google Chrome browser?

Re: Measurement widget does not work on disconnected Environment

YObaidat — Thu, 25 Feb 2021 19:44:10 GMT

The app in the snapshots is running on http. The console shows that, when I use measurement widget the API make a request to https://static.arcgis.com/fonts/arial-unicode-ms-regular/0-255.pbf. Also I changed the app to work on https and recorded a video to the issue(video link: https://youtu.be/llS3KPlEwN4) . I want to note here , I tested the app on latest version of Firefox and chrome and the problem appeared in both.

Re: Measurement widget does not work on disconnected Environment

YObaidat — Fri, 12 Mar 2021 16:19:30 GMT

@Noah-Sager

Re: Measurement widget does not work on disconnected Environment

Noah-Sager — Fri, 12 Mar 2021 16:48:46 GMT

Hi @YObaidat , my apologies as I did not see the message from 2 weeks ago. Thank you for the video, as I was concerned about the http vs https and different browser behavior. I did some more digging and we are aware of this issue, and we're working on a fix for a future release.

In the meantime, you could try pointing to a local font resource using this property, so it no longer looks online for the font:
https://developers.arcgis.com/javascript/latest/api-reference/esri-config.html#fontsUrl

Re: Measurement widget does not work on disconnected Environment

GregoryBologna — Thu, 06 Jan 2022 17:57:58 GMT

I have the same missing font issue when starting a new measurement in JS 4.22, except I have an Internet connection and I am not specifying a font anywhere in my map code. I have not changed any of the measurement widget implementation since 4.12. It is odd to me that this shows as an error in the browser instead of a warning since the framework is using a fallback. I'm not familiar with loading font for esri JS. Is there a complete example somewhere?

Re: Measurement widget does not work on disconnected Environment

Noah-Sager — Thu, 06 Jan 2022 19:35:44 GMT

Hi @GregoryBologna, unfortunately, that is a known issue that will be fixed at the next release (4.23). For loading a custom/local font, there is more information here:

https://developers.arcgis.com/javascript/latest/labeling/#featurelayer-csvlayer-and-streamlayer

and here:

https://developers.arcgis.com/javascript/latest/api-reference/esri-config.html#fontsUrl