Better By Proxy at Mobilism, 2015

Proxy browsers get a bad rep. “They’re antiques.” “They behave in weird ways.” “They’re crappy browsers.” But a deeper understanding of what they accomplish, and what they do behind the scenes, reveals that they’re actually quite ingenious. And far from becoming outdated, they’re uniquely positioned to bring the web to the next wave of people and devices around the world.

We’ll look some of the more popular proxy browsers today, what they do, how to ensure your site works well on them, and why that’s so important.

Presented at Mobilism 2015 in Amsterdam, NL on March 27, 2015.

Transcript

1. Better by Proxy
   March 27, 2015 at Mobilism
   Tim Kadlec | @tkadlec
   

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5. “Opera Mini is a s&%##*
   browser…
   

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6. “Proxy browers are s&%##*
   browsers…
   

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11. “
    

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12. https://flic.kr/p/8TzcGG
    

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13. • No 3G
    • No Wi-Fi
    • Non-touch
    • 240 x 320
    • 64MB internal
    

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14. 0
    3500
    7000
    10500
    14000
    Pakistan
    Iran
    India
    Azerbaijan
    Armenia
    Belarus
    China
    Bosnia
    Kazakhstan
    Georgia
    Macedonia
    Denmark
    US
    Netherlands
    

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15. 0
    3500
    7000
    10500
    14000
    Pakistan
    Iran
    India
    Azerbaijan
    Armenia
    Belarus
    China
    Bosnia
    Kazakhstan
    Georgia
    Macedonia
    Denmark
    US
    Netherlands
    10x
    

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17. 0.1% 16.0%
    3G
    Penetration
    Fixed
    Broadband
    

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18. Iran
    3G connections are
    “…against human and
    moral standards.”
    http://bit.ly/1pKV0gH
    

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19. speed as a weapon
    

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20. Our internet is not
    their internet.
    

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21. http://flic.kr/p/cfoupQ
    

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23. 2008kb
    

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24. 2008kb
    

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27. 100 million daily active users
    

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28. 42.2% market share in India
    

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29. 34.6% market share in China
    

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30. 258 million active users in January
    

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31. 168 billion pages transcoded
    

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32. Top 5 tablet browser in 40 countries
    

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34. Conservative Aggressive
    

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44. Network-constrained
    

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45. Bandwidth

    Latency
    Cost of Data
    

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46. Device-
    constrained
    

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47. Memory
    CPU
    

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48. Conservative Aggressive
    

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58. High Bandwidth/Low Latency
    

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60. 23%
    

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63. gzip
    !
    !
    

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64. gzip
    minification
    !
    

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65. gzip
    minification
    image compression
    image transcoding
    

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71. [REMOTE_ADDR] => 90.145.158.4
    

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72. [REMOTE_ADDR] => 66.249.81.203
    

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73. [HTTP_X_FORWARDED_FOR] => 90.145.158.4
    

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74. [HTTP_X_CONTENT_OPT] => Turbo/4.35.8109
    

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75. [HTTP_VIA] => 1.1 Chrome-Compression-Proxy
    

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76. [HTTP_X_UCBROWSER_UA] =>
    dv(XT1095);pr(UCBrowser/10.3.0.552);ov(Android
    5.0);ss(360*592);pi(1080*1776);bt(GJ);pm(1);bv(1
    );nm(0);im(0);sr(0);nt(1);dn(8664342047-3f990287
    );ai(720089404747345);
    

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77. Potential Issue #1:

    Minification removes comments in JS/CSS
    

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78. Potential Issue #1:

    Minification removes comments in JS/CSS
    Solution:

    Don’t rely on comments

    Use Cache-Control: no-transform
    

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79. Potential Issue #2:

    Images may be removed from page
    

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80. Solution:

    Ensure all images have text fallbacks
    Potential Issue #2:

    Images may be removed from page
    

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81. Potential Issue #3:

    Image transcoding or compression may result

    in blurry images
    

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82. Potential Issue #3:

    Image transcoding or compression may result

    in blurry images
    Solution:

    Use Cache-Control: no-transform
    

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84. Data Savings
    Up to 50%
    Up to 50%
    Up to 60%
    

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85. Conservative Aggressive
    

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87. Remote browsing
    

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94. var myButton = document.getElementById('#mybutton');!
    !
    button.addEventListener('click', function(){ !
    !//something!
    });!
    

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100. Everything requires user
     interaction.
     !
     Everything requires a server
     round-trip.
     

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101. Limit data consumed and limit
     impact on device.
     

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103. contextmenu
     dblclick
     error
     keydown
     keypress
     keyup
     mousemove
     mouseenter
     mouseleave
     mouseout
     mousewheel
     resize
     scroll
     touchcancel
     touchend
     touchmove
     touchstart
     

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104. setTimeout ~= 5s
     setInterval ~= 5s
     xmlHTTPRequest ~= 5s
     

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105. setTimeout executed immediately
     setInterval executed once immediately
     xmlHTTPRequest ~= 3s-4s
     

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109. DIFF
     

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110. Limit data consumed and limit
     impact on device while providing
     a nearly equal experience to a
     typical browser.
     

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111. contextmenu
     dblclick
     error
     keydown
     keypress
     keyup
     mousemove
     mouseenter
     mouseleave
     mouseout
     mousewheel
     resize
     scroll
     touchcancel
     touchend
     touchmove
     touchstart
     

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113. Rendering Engine
     Presto
     Blink (Chrome 30)
     U2 kernel (based on WebKit)
     Gecko
     

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114. border-image
     border-radius
     gradients
     transitions
     animations
     @keyframes
     font-face
     javascript only API’s (ex: localStorage)
     

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116. no icon fonts
     

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117. supportSVG = true
     

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118. supportSVG = true
     no onerror
     

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119. UCWEB/2.0 (MIDP-2.0; U; Adr 5.0; EN-US; XT1095)
     U2/1.0.0 UCBrowser/9.9.1.554 U2/1.0.0 Mobile!
     

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120. UCWEB/2.0 (MIDP-2.0; U; Adr 5.0; EN-US; XT1095)
     U2/1.0.0 UCBrowser/9.9.1.554 U2/1.0.0 Mobile!
     

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121. document.write(navigator.userAgent);
     

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122. Mozilla/50 (X11; U; Linux i686; zh-CN; rv:
     1.2.3.4) Gecko/
     document.write(navigator.userAgent);
     

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124. if('querySelector' in document!
     !&& 'localStorage' in window!
     !&& 'addEventListener' in window) {!
     !! // bootstrap the javascript application!
     }!
     

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125. if('querySelector' in document!
     !&& 'localStorage' in window!
     !&& 'addEventListener' in window) {!
     !! // bootstrap the javascript application!
     }!
     Sure, why not.
     

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126. var hasStorage = (function() {!
     try {!
     localStorage.setItem(mod, mod);!
     localStorage.removeItem(mod);!
     return true;!
     } catch (exception) {!
     return false;!
     }!
     }());!
     if( 'querySelector' in document!
     !!! && hasStorage!
     !!! && 'addEventListener' in window ){!
     !! // bootstrap the javascript application!
     }!
     

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127. Display modes
     

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128. Puffin request desktop
     

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129. Puffin request desktop
     

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130. Single column view
     

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132. href="stylesheets/screen.css">!
     !
     !
     href="stylesheets/handheld.css">
     

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136. [HTTP_X_UCBROWSER_UA] =>
     dv(XT1095);pr(UCBrowser/10.3.0.552);ov(Android
     5.0);ss(360*592);pi(1080*1776);bt(GJ);pm(1);bv(1
     );nm(0);im(0);sr(0);nt(1);dn(8664342047-3f990287
     );ai(720089404747345);
     

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138. var hasStorage = (function() {!
     try {!
     localStorage.setItem(mod, mod);!
     localStorage.removeItem(mod);!
     return true;!
     } catch (exception) {!
     return false;!
     }!
     }());!
     if( 'querySelector' in document!
     !!! && hasStorage!
     !!! && 'addEventListener' in window ){!
     !! // bootstrap the javascript application!
     }!
     

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139. UCWEB/2.0 (MIDP-2.0; U; Adr 5.0; EN-US; XT1095)
     U2/1.0.0 UCBrowser/9.9.1.554 U2/1.0.0 Mobile!
     

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140. [HTTP_X_UCBROWSER_UA] => dv(XT1095);pr(UCBrowser/
     10.3.0.552);ov(Android
     5.0);ss(360*592);pi(1080*1776);bt(GJ);pm(1);bv(1)
     ;nm(0);im(0);sr(0);nt(1);dn(8664342047-3f990287);
     ai(720089404747345);
     

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141. Data Savings
     Up to 90%
     Up to 85%
     Up to 90%
     Up to 50%
     

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146. Progressive enhancement
     !
     !
     !
     

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147. Progressive enhancement
     Responsive design
     !
     !
     

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148. Progressive enhancement
     Responsive design
     No heavy JS frameworks
     !
     

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149. Progressive enhancement
     Responsive design
     No heavy JS frameworks
     Cut the mustard
     

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151. “The journey begins by letting
     go of control, and becoming
     flexible.
     John Allsopp
     Dao of Web Design
     

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152. thank you
     March 27, 2015 at Mobilism
     !
     Tim Kadlec

     @tkadlec
     tim@timkadlec.com
     

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