Simplify HttpError

This change is cosmetic

* Remove public keyword - public by default
* Remove details - this was unused throughout the entire codebase

doc/CONTRIBUTING.md

@@ -19,7 +19,7 @@ Please refer to [VS Code's prerequisites](https://github.com/Microsoft/vscode/wi
 Differences:
 
 - We require a minimum of node v12 but later versions should work.
-- We use [fnpm](https://github.com/goreleaser/nfpm) to build `.deb` and `.rpm` packages.
+- We use [nfpm](https://github.com/goreleaser/nfpm) to build `.deb` and `.rpm` packages.
 - We use [jq](https://stedolan.github.io/jq/) to build code-server releases.
 - The [CI container](../ci/images/debian8/Dockerfile) is a useful reference for all our dependencies.
 

doc/FAQ.md

@@ -86,9 +86,20 @@ If you have your own marketplace that implements the VS Code Extension Gallery A
 point code-server to it by setting `$SERVICE_URL` and `$ITEM_URL`. These correspond directly
 to `serviceUrl` and `itemUrl` in VS Code's `product.json`.
 
+e.g. to use [open-vsx.org](https://open-vsx.org):
+
+```bash
+export SERVICE_URL=https://open-vsx.org/vscode/gallery
+export ITEM_URL=https://open-vsx.org/vscode/item
+```
+
 While you can technically use Microsoft's marketplace with these, please do not do so as it
-is against their terms of use. See [above](#differences-compared-to-vs-code). These variables
-are most valuable to our enterprise customers for whom we have a self hosted marketplace product.
+is against their terms of use. See [above](#differences-compared-to-vs-code) and this
+discussion regarding the use of the Microsoft URLs in forks:
+
+https://github.com/microsoft/vscode/issues/31168#issue-244533026
+
+These variables are most valuable to our enterprise customers for whom we have a self hosted marketplace product.
 
 ## Where are extensions stored?
 

src/common/http.ts

@@ -9,7 +9,7 @@ export enum HttpCode {
 }
 
 export class HttpError extends Error {
-  public constructor(message: string, public readonly code: number, public readonly details?: object) {
+  constructor(message: string, public readonly code: number) {
     super(message)
     this.name = this.constructor.name
   }