Open the developer tools, choose the network tab, click on "XHR" to filter down the noise, type LAX into the search box, and then watch the things that change.

Open the developer tools, choose the network tab, click on "XHR" to filter down the noise, type LAX into the search box, and then watch the things that change. After it presented the error message, I looked for things named KLAX in the list, clicked on that row, clicked on the Response pane and saw that silliness