topic Re: Thumbnail images in the Basemap widget do not appear in my web app in ArcGIS Online Questions

Thumbnail images in the Basemap widget do not appear in my web app

ScottMcGee4 — Fri, 13 Sep 2019 04:24:59 GMT

I have a web app (built using the AGOL Web App Builder). The web app is shared with my organization (it is not public). I have added the Basemap widget, using four of ESRI's standard basemaps. In the Web App Builder interface, the thumbnail images for the basemaps correctly show up in the basemap widget.

The problem is that when I view the web app in a browser (not in the Web App Builder), the thumbnail images in the basemap widget do not appear. All I get is just four blank rectangles indicating where the thumbnails should load into. The functionality of the basemap widget is fine - when I click on one of the blank rectangles, it does in fact switch the basemap in the map display to the chosen basemap.

In my troubleshooting, I shared the web app with "everyone" (made it available to the public). With the app shared publicly, the thumbnail images do in fact appear in the basemap widget. So that's cool, but we don't want to share this app with everyone, just our organization. But if I share it with only our organization, then the thumbnail images in the basemap widget do not show up.

So it seems that this issue is related to some sort of permission/sharing problem. I have no idea how to solve this. Any ideas?

Re: Thumbnail images in the Basemap widget do not appear in my web app

ScottMcGee4 — Fri, 13 Sep 2019 21:45:13 GMT

Here's a bit more information that I didn't include in my original message:

When I look at the URL for one of the thumbnail images in the Basemap widget, this is what it shows:

https://fws.maps.arcgis.com/sharing/rest/content/items/6a26447602564e6b8d33847515797e9a/resources/inConfig/0569289540272504.png?token=RTZTz9jae-jGqKMXIiXNEYMpTLFX2fWGZcjte77C5A0hOxOU9NTY7tTPUKBfEsaQjgDR5yPAiTXFrUWaz9D44oChTsJavkUlT1s9imXnXi33rsmOFrvI0ymu2Px9Vzlh8vlK_XZ0ZMywKo9A_PFvWPQS5RRvnLS8ujcBVvzBlrlvQeH-aHcddhWnc4bmfiaFm0NfLpc0Ywvj2oJHqx5wDra5ZFYGqvunbjRop4EJB-tkbpuFz7qSSPofbxmqNoWR?token=RTZTz9jae-jGqKMXIiXNEYMpTLFX2fWGZcjte77C5A0hOxOU9NTY7tTPUKBfEsaQjgDR5yPAiTXFrUWaz9D44oChTsJavkUlT1s9imXnXi33rsmOFrvI0ymu2Px9Vzlh8vlK_XZ0ZMywKo9A_PFvWPQS5RRvnLS8ujcBVvzBlrlvQeH-aHcddhWnc4bmfiaFm0NfLpc0Ywvj2oJHqx5wDra5ZFYGqvunbjRop4EJB-tkbpuFz7qSSPofbxmqNoWR

When I enter just https://fws.maps.arcgis.com/sharing/rest/content/items/6a26447602564e6b8d33847515797e9a/resources/inConfig/0569289540272504.png into a web browser, I get the following message:

ArcGIS Portal Directory

Error

You do not have permissions to access this resource or perform this operation.

Error: 403

So for some reason, my Web app does not have permission to access the Basemap widget thumbnails that are stored with the Web app.

My Web app is shared with our organization, and in order to view it, users have to log in with their organization AGOL account. So even though they can log in to our organization's AGOL account successfully, the web app still thinks the user doesn't have permission to view the thumbnail images for the Basemap widget.

Any ideas on how to fix this?

Re: Thumbnail images in the Basemap widget do not appear in my web app

ScottMcGee4 — Wed, 02 Oct 2019 07:29:43 GMT

This issue was a known bug in AGOL. Today's ESRI update to ArcGIS Online has fixed this issue, so all is well. The basemap thumbnail images now correctly show in the Basemap Gallery for web apps that require an enterprise login.

Re: Thumbnail images in the Basemap widget do not appear in my web app

RossCBrewer — Wed, 23 Oct 2019 12:20:11 GMT

I have a web app that requires an enterprise login, and the Basemap Gallery still doesn't show thumbnails, even after the Oct 2nd, 2019 update.

Re: Thumbnail images in the Basemap widget do not appear in my web app

ScottMcGee4 — Sat, 26 Oct 2019 02:29:11 GMT

This is probably a long shot, but I wonder if what you're seeing is a browser cache issue. Maybe try clearing your web browser's cache and see if that fixes the problem.

Re: Thumbnail images in the Basemap widget do not appear in my web app

DougKnight — Thu, 16 Jan 2020 19:34:50 GMT

Did you ever find a workaround to this? I see the same behavior on Enterprise 10.7 stack. When everything is public I can see the thumbnails. When I share with a group I dont get the thumbnails

Re: Thumbnail images in the Basemap widget do not appear in my web app

MiriEshel — Tue, 18 Feb 2020 13:59:35 GMT

Hello Doug,

Did you get an answer for your question? We encountered the same behavior ......

Thanks,

Miri

Re: Thumbnail images in the Basemap widget do not appear in my web app

DougKnight — Tue, 18 Feb 2020 14:06:10 GMT

I did not. I tried everything. Aside from making it public I cannot get the default esri thumbnails to show up. It looks pretty cheap to my end users. I suppose I could load and maintain internal thumbnails for them, but I feel like we pay for that with our license and this is a bug. I really dont have the time to commit to that any time soon

Re: Thumbnail images in the Basemap widget do not appear in my web app

RossCBrewer — Wed, 22 Apr 2020 16:23:28 GMT

Despite the bug implementation 7 months ago, I'm still getting broken links to thumbnails when logged in via enterprise logins...

Re: Thumbnail images in the Basemap widget do not appear in my web app

LukeFawcett1 — Thu, 04 Jun 2020 19:55:29 GMT

I'm running into the same issue as the OP in enterprise. App built with Web AppBuilder, chose a couple standard Esri basemaps to add to the basemap gallery widget. The functionality is fine, but the thumbnails don't appear. Unable to share the app publicly. Not a huge issue, but I agree it looks "cheap."

Re: Thumbnail images in the Basemap widget do not appear in my web app

John_HaroldTabuzo — Wed, 14 Oct 2020 15:39:45 GMT

You can try to share the web app to "everyone" while retaining the sharing of the web map to a certain group of users for data security.

Re: Thumbnail images in the Basemap widget do not appear in my web app

EdJuarbe — Thu, 03 Dec 2020 19:35:18 GMT

Reviving this thread since it's been a few months. Has anyone found a better solution for this bug? We just upgraded to Enterprise 10.7.1, and are seeing same issue.

Re: Thumbnail images in the Basemap widget do not appear in my web app

VanessaSimps — Fri, 10 Sep 2021 18:05:50 GMT

We are seeing this same issue as well. We didn't have the issue until we downloaded WabDev 2.21 Has anyone else seen this and figured out a work around?

FY I @LeahClark

Re: Thumbnail images in the Basemap widget do not appear in my web app

BillFox — Fri, 17 Jun 2022 16:08:37 GMT

Did you try editing the widget in WAB and selecting the "Always..." option?

Re: Thumbnail images in the Basemap widget do not appear in my web app

JenniferKuntz2 — Wed, 08 Mar 2023 20:13:45 GMT

I am using Web AppBuilder developer edition v. 2.26 and I was having this same issue. I saw in my browser dev tools "404" (not found) errors for for images in <App folder on my server>/configs/BasemapGallery/. When I checked that folder, sure enough, the images were not present. I solved the problem by right-clicking Esri thumbnails and saving them with the same file names and location as listed in the browser developer tools. It was a bit of a pain but worth it if you'll be using the app a lot and don't want to use the setting that makes all basemaps in your AGOL organization visible (for some reason choosing that option doesn't cause the missing thumbnails).

Re: Thumbnail images in the Basemap widget do not appear in my web app

ChrisRobinsonCOF — Fri, 05 May 2023 20:27:34 GMT

We are running into this as well in Web App Builder version 2.27. I was reading in another forum that it might be because Imagery Services are not supported by the basemap gallery. How can that be? They have been around for what, at least 10 years haven't they?

Chris