src/vs/code/electron-sandbox/issue/issueReporterMain.ts/IssueReporter/searchDuplicates
class IssueReporter:	private searchDuplicates(title: string, body?: string): void {
		const url = 'https://vscode-probot.westus.cloudapp.azure.com:7890/duplicate_candidates';
		const init = {
			method: 'POST',
			body: JSON.stringify({
				title,
				body
			}),
			headers: new Headers({
				'Content-Type': 'application/json'
			})
		};

		window.fetch(url, init).then((response) => {
			response.json().then(result => {
				this.clearSearchResults();

				if (result && result.candidates) {
					this.displaySearchResults(result.candidates);
				} else {
					throw new Error('Unexpected response, no candidates property');
				}
			}).catch(_ => {
				// Ignore
			});
		}).catch(_ => {
			// Ignore
		});
	}