Devices with isMobile cause empty screenshots

### Prerequisites - [x] I'm using the last version. - [x] My node version is the same as declared as `package.json`. ### Subject of the issue When creating a screenshot with for example device `Microsoft Lumia 950 landscape` (or any other device that has `isMobile=true` causes the screenshot to be become empty ### Steps to reproduce > **Note**: You can reproduce the code using [interactive Node.js shell by Runkit](https://npm.runkit.com/browserless). Tell us how to reproduce this issue. ``` await browser.goto(page, { url: 'https://google.com', device: 'Microsoft Lumia 950 landscape', }) ``` When logging the above code it already returns `error: Error: net::ERR_ABORTED at https://google.com`, I think this is because a device with `isMobile` causes the page to reload and the timeout to hit. ### Expected behaviour It to run correctly, not throwing an error. ### Actual behaviour An error is being thrown.