Running cesium without a server

CesiumJS
1

My problem is quite simple: I’d like to use Cesium just like a static web page.
Well… it works pretty well as standalone, except when it comes to retrieve tiles from Internet. Natural Earth (local) tiles are correctly loaded
I guess there will be a cross-origin issue but for now, I’m facing another problem: the URLs for online imagery are missing http: when Cesium is loaded from a local URL (file://)
Here is a Firebug trace:
An error occurred in “E”: An error occurred while accessing //dev.virtualearth.net/REST/v1/Imagery/Metadata/Aerial?incl=ImageryProviders&key=Aj1ony_-Typ-KjG9SJWiKSHY23U1KmK7yAmZa9lDmuF2osXWkcZ22VPsqmCt0TCt.

The problem is not present on WebGLEarth, which uses Cesium globe as well.

Thanks for your help.

2

I’m not part of the dev team, but by default, Cesium uses the Bing Maps imagery provider, and the default URL is specified without a protocol. Because of this, it tries to load the Bing Maps API using the same protocol as the page(file://) and thus it fails.

You can configure the imageryProvider for Cesium and set it to Bing Maps. Just make sure to add http:// as part of the URL. See the documentation here.

3

Well, I’m gonna check this.

Indeed it makes sense and I will then modify the code to force download from http:// instead of //

I’ll tell you if it works

Thanks

4

I did a quick & dirty test, and replaced “//dev.virtualearth.net/” by "http://dev.virtualearth.net/ directly in the Cesium JavaScript code. I did the same for ESRI tiled imagery.

sed -e -i “s|//dev.virtualearth.net/|http://dev.virtualearth.net/|g” CesiumViewerStartup.js
sed -e -i “s|//services.arcgisonline.com/|http://services.arcgisonline.com/|g” CesiumViewerStartup.js

It worked and I’m now able to see the imagery from both Bing and ESRI, even when Cesium is loaded from disk (file:// URL)

Now, I think next step would be to modify tiles URLs during the download processing and detect URLs starting with “//”