Test 1: load background image defined in CSS

Test 2: use hidden img to preload background image

Test 3: preload background image with JavaScript

Chrome, Cable

Test with 1 Stylesheet, JavaScript (2 inline and one src script loading jquery), 8 images and 2 background images

Test1

Test2

Test3

Video

Test with 1 Stylesheet, JavaScript (2 inline and one src script loading jquery) and 2 background images

Test1-1

Test2-1

Test3-1

Video

Test with inline styles and 2 background images

Test1-2

Test2-2

Test3-2

Video

Chrome, 3G

Test with 1 Stylesheet, JavaScript (2 inline and one src script loading jquery), 8 images and 2 background images

Test1

Test2

Test3

Video

Test with 1 Stylesheet, JavaScript (2 inline and one src script loading jquery) and 2 background images

Test1-1

Test2-1

Test3-1

Video

Test with inline styles and 2 background images

Test1-2

Test2-2

Test3-2

Video

IE10, DSL

Test with 1 Stylesheet, JavaScript (2 inline and one src script loading jquery), 8 images and 2 background images

Test1

Test2

Test3

Video

Test with 1 Stylesheet, JavaScript (2 inline and one src script loading jquery) and 2 background images

Test1-1

Test2-1

Test3-1

Video

Test with inline styles and 2 background images

Test1-2

Test2-2

Test3-2

Video

Firefox, Cable

Test with 1 Stylesheet, JavaScript (2 inline and one src script loading jquery), 8 images and 2 background images

Test1

Test2

Test3

Video

Test with 1 Stylesheet, JavaScript (2 inline and one src script loading jquery) and 2 background images

Test1-1

Test2-1

Test3-1

Video

Test with inline styles and 2 background images

Test1-2

Test2-2

Test3-2

Video

Motorola G, Chrome, 3G

Test with 1 Stylesheet, JavaScript (2 inline and one src script loading jquery), 8 images and 2 background images

Test1

Test2

Test3

Video

Test with 1 Stylesheet, JavaScript (2 inline and one src script loading jquery) and 2 background images

Test1-1

Test2-1

Test3-1

Video

Test with inline styles and 2 background images

Test1-2

Test2-2

Test3-2

Video