Right now there are two framework libraries being generated in the wasm build.
luhenry added a commit that referenced this issue
Sep 19, 2018
* Rename sdks WebAssembly framework libraries. Rename: - bindings.dll -> WebAssembly.Bindings.dll - wasmhttp.dll -> WebAssembly.Net.Http.dll resolves: #10620 * Fix package step * Fix package step for WebAssembly.Net.Http. Fixed the package step that was failing due trying to include wasmhttp.pdb instead of WebAssembly.Net.Http.pdb.