%HTMLlat1; %HTMLsymbol; %HTMLspecial; ]> HTML5
Roland van Ipen­burg
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HTML5

Sun­day 16 May 2010 00:14

HTML5 is the end of hy­per­text as we know it, and browsers have dumb­ed users and their in­ter­faces down to the pre-win­dows era.

The point of win­dows was that you could run mul­ti­ple pro­grams at the same time and each pro­gram could be show­ing some­thing on it's own part of the screen. In the­o­ry this means that us­ing Ob­ject Link­ing and Embed­ding (OLE) you could cre­ate a doc­u­ment in Word and em­bed im­ages in it that were seem­less­ly shown through a ded­i­cat­ed graph­ics ap­pli­ca­tion and charts that were gen­er­at­ed by a ded­i­cat­ed spread­sheet ap­pli­ca­tion, and the doc­u­ments in those ap­pli­ca­tion could again use OLE to em­bed some­thing from a ded­i­cat­ed ap­pli­ca­tion. Every part of your doc­u­ment could be han­dled by a ded­i­cat­ed ap­pli­ca­tion, in­de­pen­dant of the ca­pa­bil­i­ties of the em­bed­ding ap­pli­ca­tion. In the days of DOS be­fore that you could only cre­ate a doc­u­ment with the abil­i­ties of a sin­gle ap­pli­ca­tion, or get cre­ative in the print­ing phase and put place­hold­ers in your text and put the pa­per back in the print­er to print the im­ages and charts from oth­er ap­pli­ca­tions in the place­hold­ers be­tween the text. Win­dows moved that trick into the op­er­at­ing sys­tem and called it OLE, but in prac­tice it meant that you'd need a shit­load of mem­o­ry to run all those ap­pli­ca­tions at the same time, and the only shar­ing of those doc­u­ments was still through print­ing a fi­nal re­sult be­cause you couldn't ex­pect the re­ceiv­ing par­ty to have all the same ap­pli­ca­tions to make up the com­plete doc­u­ment with all the em­bed­ded stuff. But with­out the in­ter­net to share doc­u­ments that was hard­ly an is­sue.

The beau­ty of HTML was that it was up to the brows­er to de­cide what to do with the tags it en­coun­tered. While some browsers could show an im­age in­line, oth­ers could not and had to open an­oth­er ap­pli­ca­tion to han­dle it. And since not all ap­pli­ca­tions could han­dle all sorts of im­age for­mats the HTTP client part of the brows­er was sup­posed to ne­go­ti­ate with the HTTP serv­er about what was the best for­mat to use in that sit­u­a­tion. An im­por­tant part of the brows­er was to re­quest all sorts of doc­u­ment for­mats and then open them in ded­i­cat­ed ap­pli­ca­tions so a brows­er shouldn't be bur­dened with the task of hav­ing to im­ple­ment the han­dling of every doc­u­ment for­mat on the web. And us­ing the win­dows con­cept ded­i­cat­ed ap­pli­ca­tions could show their con­tent em­bed­ded in the brows­er.

But the pre-in­ter­net era ded­i­cat­ed ap­pli­ca­tions weren't de­signed with to­day's se­cu­ri­ty in mind, and open­ing a doc­u­ment di­rect­ly from the web could lead to ex­e­cut­ing ma­li­cious code. The ap­pli­ca­tion wouldn't know if a doc­u­ment it had to open came from a trust­ed source or some evil web­site, so the brows­er need­ed to track the sources and sand­boxed the web. Only be­cause pro­vid­ing a user with an op­ti­mized ap­pli­ca­tion that has to run out­side that sand­box would give some nasty warn­ings about a po­ten­tial se­cu­ri­ty is­sue the ap­pli­ca­tion is turned into a web­site that is crap at be­ing an ap­pli­ca­tion, and maybe a bit less crap with the help of Flash. Be­cause ex­e­cuta­bles were to easy to abuse to spread virus­es every sort of ap­pli­ca­tion we al­ready had per­fect­ly run­ning in the DOS and Win­dows days was trans­lat­ed into a sur­ro­gate we­bapp ver­sion. Which is all pret­ty use­less if that means all your valu­able stuff is in­side the sand­box any­way and out­side of the sand­box there is noth­ing left to pro­tect. The web turned into a big workaround for en­vi­ron­ments that would not al­low to in­stall soft­ware, but could not pre­vent the func­tion­al­i­ty of that soft­ware be­ing pro­vid­ed through a web­site that runs in the al­ready in­stalled brows­er, con­ve­nient­ly rid­dled with ads.

At that point the brows­er doesn't have much to de­cide. In pol­i­cy re­strict­ed cor­po­rate en­vi­ron­ments and on locked down phones there are no ded­i­cat­ed ap­pli­ca­tions to han­dle con­tent bet­ter than the brows­er would. The brows­er has to act again like the sin­gle mono­lith­ic DOS ap­pli­ca­tion that has to do every­thing by it­self, and HTML5 is try­ing to pro­vide a stan­dard to make that hap­pen. HTML5 is shaped by closed plat­forms and throws away twen­ty years of user in­ter­face con­cepts. W3C seems to have lost all it's am­bi­tion for lead­ing the web to it's full po­ten­tial. But what do you ex­pect from a com­mu­ni­ty that would prob­a­bly be ut­ter­ly amazed if it was shown them at a TED pre­sen­ta­tion what was pos­si­ble fif­teen years ago on X pre­tend­ing it was in­vent­ed yes­ter­day in Cu­per­ti­no?

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