Image file handling

[MrOrz]

View details in Rollbar: https://rollbar.com/mrorz/url-resolver/items/16/

Error: Evaluation failed: Error: First argument to Readability constructor should be a document object.
    at new Readability (__puppeteer_evaluation_script__:36:11)
    at executor (__puppeteer_evaluation_script__:1829:10)
    at __puppeteer_evaluation_script__:1831:16
    at __puppeteer_evaluation_script__:1832:8
  File "__puppeteer_evaluation_script__", line 36, in new Readability
  File "__puppeteer_evaluation_script__", line 1829, in executor
  File "__puppeteer_evaluation_script__", line 1831, in <unknown>
  File "__puppeteer_evaluation_script__", line 1832, in <unknown>
  File "/node_modules/puppeteer/lib/ExecutionContext.js", line 90, in ExecutionContext.evaluateHandle
            throw new Error('Evaluation failed: ' + helper.getExceptionMessage(exceptionDetails));
  File "internal/process/next_tick.js", line 68, in process._tickCallback

[MrOrz]

Should be handled by 139b3b6

[MrOrz]

Weird.