# Can you get a list of (non standard) mime types used for JS scripts? **URL:** \ **Category:** Analysis\ **Created:** [November 13, 2017, 8:31pm UTC](https://discuss.httparchive.org/t/can-you-get-a-list-of-non-standard-mime-types-used-for-js-scripts/1141 "2017-11-13T20:31:14Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![paulcalvano](https://yyz1.discourse-cdn.com/flex035/user_avatar/discuss.httparchive.org/paulcalvano/32/1601_2.png) [@paulcalvano](https://discuss.httparchive.org/u/paulcalvano)\ **Post date:** [November 14, 2017, 3:39am UTC](https://discuss.httparchive.org/t/can-you-get-a-list-of-non-standard-mime-types-used-for-js-scripts/1141/2 "2017-11-14T03:39:27Z")
I decided to take a stab that this by aggregating the mimeTypes in the Desktop and Mobile requests tables where `type="script"`. You can see the query for this below: ```sql SELECT mimeType, count(*) freq FROM ( SELECT mimeType FROM `httparchive.runs.2017_10_15_requests` WHERE type = "script" UNION ALL SELECT mimeType FROM `httparchive.runs.2017_10_15_requests_mobile` WHERE type = "script" ) GROUP BY mimeType ORDER BY freq DESC ``` Overall there are 353 mime types detected, with the first 6 accounting for 99.53%. You can see the most frequent mimeType’s along with the percent and cumulative percent below: ![image](https://cdck-file-uploads-canada1.s3.dualstack.ca-central-1.amazonaws.com/flex035/uploads/httparchive/original/1X/f45ca8c205b47eba57bdcc9303aac6ddf742b716.png) The requests table also includes the extension, and we can analyze this further by adding it into the query: ```sql SELECT mimeType, ext, count(*) freq FROM ( SELECT mimeType, ext FROM `httparchive.runs.2017_10_15_requests` WHERE type = "script" UNION ALL SELECT mimeType, ext FROM `httparchive.runs.2017_10_15_requests_mobile` WHERE type = "script" ) GROUP BY mimeType, ext ORDER BY freq DESC ``` ![image](https://cdck-file-uploads-canada1.s3.dualstack.ca-central-1.amazonaws.com/flex035/uploads/httparchive/original/1X/d5f787a22a1f9e204692067615e408b1ede6df3d.png) The full list of all 353 mime types is below, but you’ll notice that the 5th most frequent one is null. It seems there are quite a few sites loading JavaScript without a mimetype - which could be problematic if you plan to restrict based on mime type… ```sql application/javascript text/javascript application/x-javascript application/json text/html text/plain application/octet-stream text/json text/js text/x-js text/x-json application/octet-stream, application/javascript application/opensearchdescription+xml binary/octet-stream application/zip application/octet-stream, text/javascript application/ecmascript text/javascript, charset=utf-8 application/vnd.api+json application/javascript, application/javascript unknown/unknown application/jsonp application/vnd.softswiss.v1+json text/ecmascript application/vnd.maxmind.com-country+json application/hal+json application/x-amz-json-1.1 application/javascript, text/javascript application / json application/vnd.maxmind.com-city+json text/JavaScript application/json, application/json Application/js application/vnd.contentful.delivery.v1+json application/x-javascript, application/x-javascript application/js application/octetstream application/javascript; charset=utf-8 application/x-javascript, text/javascript application/x-httpd-php application/x-javascript; charset=utf-8 application/x-gzip text/javascript; charset=UTF-8 json application/x-javascript, application/javascript Content-type: text/javascript application/octet-stream, application/x-javascript Content-Type: application/json application/x-js text/plain charset=UTF-8 application/binary application/content+json text/javascript charset=utf-8 text/x-javascript plain/text application/x-json text/x-c text/HTML text/javascript js text/plain, text/javascript application/json, charset=utf-8 application/json charset=UTF-8 application/unknown application/vnd.maxmind.com-error+json application/json,charset=utf-8 application/vnd.rbgemc+json application/octet-stream, application/json application/vnd.cartera.ocapi+json application/x-www-form-urlencoded application/json; charset=utf-8 application/json, text/javascript text/Javascript application/javascript; charset=UTF-8 none text/html, application/json application/x_javascript text/html,application/json aplication/json application/vnd.geo+json application/javascriptapplication/x-javascript application/x-amz-json-1.0 baiduApp/json script/javascript text/javascript; charset=utf-8 application/x-octet-stream inconnu/inconnu application/x-elc application/json application/vnd.kafka.v1+json application/json charset=UTF-8, text/plain text/javscript application/json;charset=UTF-8 text/javascript;charset=UTF-8 text/html, application/javascript text/html; charset=UTF-8 type/javascript text/x-c++ application/json; charset=UTF-8 text/html text/scriptlet application/JSON text/jscript text/javascript+json text/html; charset=utf-8 application/javascriptapplication/x-javascripttext/javascript appsication/x-javascript dynamo-internal/forbidden application/vnd.swm.v3+json application/x-jaascript json/application application application/javascript, text/html Application/json application/ld+json text/javascript charset=UTF-8 application/javascript, application/x-javascript text/txt application/vnd.playlist.vrt.be.noa_1.0+json application/x-j jsonp application/json charset=utf-8 application:json application/json-rpc Application/Json application/x-javascript,application/x-javascript application/x-directory application/json,content-encoding:gzip,vary:accept-encoding text/javascript;charset=utf-8 application/x-JavaScript script application/x-javascripts application/vnd.gramedia.v3+json application/x-download application/vnd.mangahigh.api-v1+json text/javascript,application/json text/javascript charset=utf8 application/vnd.epg.vrt.be.onairs_1.2+json application/api-v3+json text/0.4/hammer.min.js unknown application/problem+json application/download Application/x-javascript inode/x-empty js/x-javascript application/javascript;charset=utf-8 application/javascript;charset=UTF-8 application/vnd.novomind.iq-v3.0+json text/JSON application/force-download application/x-javacript application/jsonrequest JSON application/vnd.rba.auctions.v1+json text/x-pascal application/json;charset=ISO-8859-1 application/vnd.active-profile.v1+json application/x-javascript,application/json application/vnd.data-layer.v1+json application/vnd.tiaa.personalization-data-store-rs-v1.0+json text application/x/javascript application/transit+json application/vnd.stream-cz.api+hal+json application/x- text/script application/x-unknown-content-type x-application/javascript text/javascript, text/javascript application/vnd.maxmind.com-insights+json application/vnd.rb.uim-v8+json text/javasript text/x-handlebars-template text/javascript, application/xml application/x-web-app-manifest+json application/postscript TEXT/JAVASCRIPT "text/javascript application/truelocal-1.0+json application/x-javascript, text/html text/json-comment-filtered application/javascript,application/x-javascript,text/javascript application/Javascript application/manifest+json application/JavaScript application/vnd.epg.vrt.be.channel_2.0+json javascript/x-javascript application-json application/vnd.privategriffe+json application/vnd.mason+json applicaton/json text/x-asm application/x-httpd-php5 application/vnd.nrk.psapi+json accplication/x-javascript datalication/x-javascript application/vnd.pxs.index.v1+json application/vnd.epg.vrt.be.channels_1.1+json application/vnd.radio-canada.neuro+json application/vnd.epg.vrt.be.onairs_1.0+json application/Json text/Actionscript application/opensearchdescription+xml; charset=utf-8 fcgid-script application/javascript+jsonp charset=UTF-8 Application/javascript application\\json text\\javascript application/x-javascript,text/html application/x-view-source text/javacript application/javascript. application/vnd.shureeu.v1+json application/vnd.buckets+json text/x-script.perl application/gzip x-mapp-php5 application/vnd.rba.search.v1+json application/vnd.qiwi.sso-v1+json application/x-javascript;charset=UTF-8 application/vnd.wg.cds_api+json application/javascript,Charset=UTF-8 text-javascript text/javascript;charset=ISO-8859-1 application/x-script applecation/json application/vnd.de.zdf.v1.0+json application/x-javascript charset=utf-8 x-javascript text/javascipt ext/javascript application/vnd.sequoia+json "text/javascript " application/empty .js text/csv text/plain, application/javascript application/rsvpjson-v1+json text/html; charset=iso-8859-1 application/vnd.kafka.v2+json application/javascript, */* text/javascript application/AngularJS javascript x-json application/vnd.session-service+json application/vnd.com.shoebuy.v1+json application/vnd.weather.vrt.be.observations_1.0+json text/javascript charset="utf-8" application/vnd.rb.uim-v6+json application/vnd.ez.api.Root+json 'text/javascript' application/vnd.maxmind.com-city-isp-org+json application/vnd.digipost-v2+json text/x-netuix-json-comment-filtered application/json, text/plain, */* application/x-perl application/vnd.traffic.vrt.be.traffic_jam_length_1.0+json ​application/javascript "application/x-javascript" text/json charset=utf-8 application/x-javascript charset="utf-8" application/json,text/x-json,application/jsonrequest,text/json application/x-javasc text/x-matlab application/javascrit application/x-msdownload text/x-script.ruby txt/javascript application/javascript,text/html application/vnd.allegro.public.v1+json application/javascript, charset=utf-8 application/JSONP tk/relay text/json, application/json application/x-java-pack200 UTF-8 application/vnd.collection+json application/vnd.music.vrt.be.songs_2.0+json application/vnd.countries+json application/vnd.preferences+json application/x-javascript exts=js json/json application/vnd.graphite.v1+json application/vnd.mywebgrocer.account-entry+json application/vnd.mywebgrocer.stores+json jsonp/plain application/com.bclc.csg.lotto.results+json appplication/json application/vnd.cft-data.v1.8+json application/vnd.sumall.platforms+json multipart/byteranges application/json, text/plain Application/JSON application/vnd.art19.v0+json text/min.js text/json, charset=utf-8 application/lance+json type/JSON application/vnd.blueapron.com.v20150501+json {'Content-Type': 'application/json'} application/vnd.lotsys.itf.jackpot-1+json appliction/json application/vnd.com.dominos.ecommerce.store-locator.response+json Content-Type:application/javascript text/json;charset=UTF-8 application/vnd.vmware.horizon.manager.error+json 86400 application/vnd.live-list+json application/rsvpjson-v3+json php5-script application/javascript, application/x-javascript, text/javascript application/rsvpjson-v2+json text/html, text/plain, text/plain, text/plain, text/plain, text/plain application: json text/json application/vnd.villaday.v2+json application/json, application/javascript application/x-javascript;charset=utf-8 text/javascript, charset=UTF-8 text/html, text/plain, text/plain application/json,Charset=UTF-8 text/x-csrc application/geojson application/json, text/plain, text/plain text/html, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain "text/javascript" text/html, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain application/x-javascript; charset=UTF-8 application/vnd.otto.flyout+json application/x-javascript; charset=gb2312 text/html, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain application/octet-stream, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain php-script application/vnd.swacorp.com.air-reservations.last-bookable-date-v1.0+json text/x-json; charset=UTF-8 .json application/vnd.overstock-v1+json application/javascript, text/javascript, text/javascript, text/javascript, text/javascript appliaction/json text/html, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain, text/plain application/vnd.autorei.sponsoredProductList+json application/javascript, text/javascript, text/javascript application/vnd.cm.messages_version_1.0+json content-type: application/json application/json, text/javascript, */* application/octet-stream, text/plain, text/plain, text/plain, text/plain, text/plain text/html, text/plain, text/plain, text/plain, text/plain text/json,charset=utf8 ``` Exploring the ~ 2.25% of all scripts in the HTTP Archive that had no mimeType associated with them, I found they mainly fell into 3 categories: - JavaScript from Third Party Ads - JS or JSON responses from social sharing functionality such as twitter, pinterest, etc. - 3rd party beacons that returned 0 bytes --- _[View the full topic](https://discuss.httparchive.org/t/can-you-get-a-list-of-non-standard-mime-types-used-for-js-scripts/1141)._