in src/embed.ts [485:493]
private getAccessToken(globalAccessToken: string): string {
const accessToken = this.config.accessToken || this.element.getAttribute(Embed.accessTokenAttribute) || globalAccessToken;
if (!accessToken) {
throw new Error(`No access token was found for element. You must specify an access token directly on the element using attribute '${Embed.accessTokenAttribute}' or specify a global token at: powerbi.accessToken.`);
}
return accessToken;
}