Common HTTP ContentType settings for AJAX applications

Article Source: Ajax application Common HTTP contenttype settings

In AJAX development, you often encounter the following scenarios:

1 The server needs to return a regular text to the client
2 The server needs to return a piece of HTML code to the client
3 The server needs to return an XML code to the client
4 The server needs to return a piece of JavaScript code to the client
5 The server needs to return a JSON string to the client

For each return type, the canonical practice is to specify the response contenttype on the server side.
(Not a problem in most cases, especially when returning "non-XML")

Code  
    Plain text: Text/plain
    HTML code: text/html
    XML code: Text/xml
More than three can be said to be uncontroversial, but the other two things should be noted.  
JavaScript ContentType by the most standard notation should be Application/javascript. 
and the commonly used text/javascript has been defined by the RfC as obsolete.  
However, it is not recommended to use application/javascript here for the time being
because many older browsers do not support Application/javascript 
and all browsers support text/ JavaScript .  
between standard and broad compatibility, choose the latter for the moment.

JSON's ContentType common notation are: Text/json & Text/javascript.
But this text/json in fact does not exist at all, and text/javascript in some cases the client processing will be ambiguous.
For JSON contenttype, the standard notation defined in the RFC is: Application/json.

There is no doubt that we should choose the Application/json of standard notation.

Finally, attach the ContentType list:

Commonly used for:

Text/plain Text/htmltext/xmltest/javascriptapplication/jsonimage/gifimage/jpeg

Listing:

". *" = "Application/octet-stream" ". 001" = "application/x-001" ". 301" = "application/x-301" ". 323" = "text/h323" ". 906" = " application/x-906 "". 907 "=" drawing/907 "". A11 "=" application/x-a11 "". ACP "=" AUDIO/X-MEI-AAC "". Ai "=" application/ PostScript ". AIF" = "Audio/aiff" ". aifc" = "Audio/aiff" ". Aiff" = "Audio/aiff" ". Anv" = "Application/x-anv". Asa "=" text/ Asa "". asf "=" video/x-ms-asf "". asp "=" text/asp "". asx "=" video/x-ms-asf "". Au "=" audio/basic "". avi "=" Video/avi "". AWF " = "Application/vnd.adobe.workflow" ". Biz" = "Text/xml" ". bmp" = "application/x-bmp" ". Bot" = "Application/x-bot" ". c4t" = " APPLICATION/X-C4T "". C90 "=" Application/x-c90 "". Cal "=" Application/x-cals "". Cat "=" Application/vnd.ms-pki.seccat "" . cdf "=" APPLICATION/X-NETCDF "". Cdr "=" Application/x-cdr "". Cel "=" Application/x-cel "". cer "=" application/ X-x509-ca-cert "". Cg4 "=" Application/x-g4 "". CGM "=" APPLICATION/X-CGM "". cit "=" Application/x-cit "". Class "=" java/* "" . CML "=" Text/xml "". cmp "=" application/x-cmp "". CMX "=" application/x-cmx "". Cot "=" Application/x-cot "".CRL "=" application/pkix-crl "". Crt "=" Application/x-x509-ca-cert "". CSI "=" Application/x-csi "". css "=" text/css "". Cut "=" Application/x-cut "". dbf "=" application/x-dbf "". dbm "=" application/x-dbm "". dbx "=" application/x-dbx "". DCD "=" Text/xml "". Dcx "=" Application/x-dcx "". Der "=" Application/x-x509-ca-cert "". DGN "=" APPLICATION/X-DGN "". Dib "=" Application/x-dib "". dll "=" Application/x-msdownload "". Doc "=" Application/msword "". Dot "=" Application/msword "". DRW "=" APPLICATION/X-DRW "". DTD "=" Text/xml "". DWF "=" MODEL/VND.DWF "". DWF "=" APPLICATION/X-DWF "". dwg "=" application/ X-dwg "". Dxb "=" APPLICATION/X-DXB "". DXF "=" application/x-dxf "". Edn "=" Application/vnd.adobe.edn "". EMF "=" Application/x-emf "". eml "=" message/rfc822 "". Ent "=" Text/xml "". Epi "=" Application/x-epi "". EPs "=" Application/x-ps "" . eps "=" Application/postscript "". etd "=" application/x-ebx "". exe "=" application/x-msdownload "". Fax "=" Image/fax "". FDF "=" Application/vnd.fdf "". Fif "=" Application/fractals "". Fo "=" text/xml "". frm "=" application/x-frm "". G4 "=" appLication/x-g4 "". GBR "=" APPLICATION/X-GBR "". gcd "=" APPLICATION/X-GCD "". gif "=" image/gif "". Gl2 "=" APPLICATION/X-GL2 " ". Gp4" = "Application/x-gp4" ". Hgl" = "Application/x-hgl" ". HMR" = "APPLICATION/X-HMR" ". Hpg" = "APPLICATION/X-HPGL" ". HPL "=" APPLICATION/X-HPL "". hqx "=" application/mac-binhex40 "". Hrf "=" APPLICATION/X-HRF "". HTA "=" Application/hta "". HTC " = "Text/x-component" ". htm" = "text/html" ". html" = "text/html" ". Htt" = "text/webviewhtml" "." HTX "=" text/html "". ICB "=" APPLICATION/X-ICB "". ico "=" Image/x-icon "". ico "=" Application/x-ico "". IFF "=" Application/x-iff "". Ig4 "=" Application /x-g4 "". IGs "=" Application/x-igs "". III "=" Application/x-iphone "". img "=" application/x-img "". Ins "=" application/ X-internet-signup "". ISP "=" Application/x-internet-signup "". IVF "=" VIDEO/X-IVF "". Java "=" java/* "". Jfif "=" Image/jpeg "". Jpe "=" Image/jpeg "". Jpe "=" Application/x-jpe "". jpeg "=" Image/jpeg "". jpg "=" image/jpeg "". jpg "=" application/x-jpg "". js "=" Application/x-javascript "". jsp "=" text/html "". La1 "=" Audio/x-liquid-file "". Lar "="Application/x-laplayer-reg" ". Latex" = "Application/x-latex" ". LAVs" = "Audio/x-liquid-secure" ". LBM" = "application/ X-LBM "". Lmsff "=" Audio/x-la-lms "". ls "=" application/x-javascript "". Ltr "=" application/x-ltr "". m1v "=" Video/x-mpeg " ". m2v" = "Video/x-mpeg" ". m3u" = "Audio/mpegurl" ". m4e" = "VIDEO/MPEG4" ". Mac" = "Application/x-mac" ". Man" = "application/ X-troff-man "". Math "=" Text/xml "". mdb "=" application/msaccess "". mdb "=" Application/x-mdb "". MFP "=" application/ X-shockwave-flash "". mht "=" message/rfc822 "". mhtml "=" message/rfc822 "". Mi "=" Application/x-mi "". Mid "=" Audio/mid "". Midi "=" Audio/mid "". Mil "=" Application/x-mil "". MML "=" Text/xml "". MND "=" Audio/x-musicnet-download "". MNs "=" audio/ X-musicnet-stream "". Mocha "=" Application/x-javascript "". Movie "=" Video/x-sgi-movie "". Mp1 "=" Audio/mp1 "". MP2 "=" Audio/mp2 "". mp2v "=" Video/mpeg "". mp3 "=" Audio/mp3 "". mp4 "=" VIDEO/MPEG4 "". MPa "=" Video/x-mpg "". MPD "=" application/ Vnd.ms-project "". Mpe "=" Video/x-mpeg "". Mpeg "=" Video/mpg "". mpg "=" Video/mpg "". MPGA "=" Audio/rn-mpeg " ". MPP" = "Application/vnd.ms-project" ". MPs" = "video/x-mpeg" ". MPT" = "Application/vnd.ms-project" ". MPV" = "Video/mpg" " . Mpv2 "=" Video/mpeg "". MPW "=" Application/vnd.ms-project "". MPX "=" Application/vnd.ms-project "". MTx "=" Text/xml "". MXP "=" APPLICATION/X-MMXP "". Net "=" Image/pnetvue "". NRF "=" APPLICATION/X-NRF "". NWS "=" message/rfc822 "". odc "=" text/ X-ms-odc "". Out "=" Application/x-out "". P10 "=" Application/pkcs10 "". P12 "=" application/x-pkcs12 "". p7b "=" Application /x-pkcs7-certificates "". p7c "=" Application/pkcs7-mime "". p7m "=" Application/pkcs7-mime "". p7r "=" application/ X-pkcs7-certreqresp "". P7s "=" Application/pkcs7-signature "". Pc5 "=" APPLICATION/X-PC5 "". PCI "=" Application/x-pci "". PCL "=" APPLICATION/X-PCL "". pcx "=" application/x-pcx "". pdf "=" Application/pdf "". pdf "=" Application/pdf "". Pdx "=" Application/vnd.adobe.pdx "". pfx "=" application/x-pkcs12 "". PGL "=" APPLICATION/X-PGL "". Pic "=" Application/x-pic "". Pko "=" Application/vnd.ms-pki.pko "". pl "=" Application/x-perl "". PLG "=" text/html "". Pls "=" audio/scpls "". Plt "=" application/x-plt "". png "=" image/png "". png "=" application/x-png "". Pot "=" Application/vnd.ms-powerpoint "". PPA "=" application/vnd.ms-powerpoint "". ppm "=" application/x-ppm "". pps "=" Application/vnd.ms-powerpoint "". ppt "=" Application/vnd.ms-powerpoint "". ppt "=" application/x-ppt "". PR "=" APPLICATION/X-PR "". PRF "=" application/pics-rules ". prn" = "application/x-prn" ". Prt" = "application/x-prt" ". PS" = "Application/x-ps" ". PS" = "Application/postscript" ". PTN "=" Application/x-ptn "". Pwz "=" Application/vnd.ms-powerpoint "". r3t "=" Text/vnd.rn-realtext3d "". Ra "=" audio/ Vnd.rn-realaudio "". Ram "=" Audio/x-pn-realaudio "". Ras "=" Application/x-ras "". Rat "=" Application/rat-file "". RDF "=" Text/xml "". Rec "=" application/vnd.rn-recording "". Red "=" application/x-red "". RGB "=" Application/x-rgb "". RJs "=" Application/vnd.rn-realsystem-rjs "". Rjt "=" Application/vnd.rn-realsystem-rjt "". RLC "=" APPLICATION/X-RLC "". Rle "=" Application/x-rle "". Rm "=" Application/vnd.rn-realmedia "". Rmf "=" APPLICATION/VND.ADOBE.RMF "". RMI "=" Audio/mid "". Rmj "=" APPLICATION/VND.RN-REALSYSTEM-RMJ "". RMM "=" Audio/x-pn-realaudio "". RMP "=" application/vnd.rn-rn_ Music_package "". RMS "=" Application/vnd.rn-realmedia-secure "". rmvb "=" APPLICATION/VND.RN-REALMEDIA-VBR "". Rmx "=" Application/vnd.rn-realsystem-rmx "". Rnx "=" Application/vnd.rn-realplayer "". RP "=" Image/vnd.rn-realpix "". RPM "=" Audio/x-pn-realaudio-plugin "". Rsml "=" APPLICATION/VND.RN-RSML "". RT "=" Text/vnd.rn-realtext "". rtf "=" application/ MSWord ". rtf" = "Application/x-rtf" ". RV" = "Video/vnd.rn-realvideo" ". Sam" = "Application/x-sam" ". Sat" = "application/ X-sat "". SDP "=" APPLICATION/SDP "". Sdw "=" Application/x-sdw "". Sit "=" Application/x-stuffit "". SLB "=" application/ X-SLB "". SLD "=" APPLICATION/X-SLD "". SLK "=" drawing/x-slk "". Smi "=" Application/smil "". Smil "=" Application/smil "". SMK "=" APPLICATION/X-SMK "". snd "=" Audio/basic "". Sol "=" Text/plain "". Sor "=" Text/plain "". SPC "=" application/ X-pkcs7-certificates "". SPL "=" Application/futuresplash "". spp "=" Text/xml "". SSM "=" Application/streamingmedia "". SSt= "Application/vnd.ms-pki.certstore" ". StL" = "Application/vnd.ms-pki.stl" ". stm" = "text/html" ". Sty" = "application/ X-sty "". svg "=" text/xml "". swf "=" Application/x-shockwave-flash "". TDF "=" APPLICATION/X-TDF "". TG4 "=" application/ X-TG4 "". TGA "=" application/x-tga "". tif "=" Image/tiff "". tif "=" application/x-tif "". Tiff "=" Image/tiff "". TLD "=" text/ XML ". Top" = "drawing/x-top" ". Torrent" = "application/x-bittorrent" ". Tsd" = "text/xml" ". txt" = "Text/plain" ". UIn" = " Application/x-icq "". Uls "=" Text/iuls "". vcf "=" Text/x-vcard "". Vda "=" Application/x-vda "". vdx "=" application/ Vnd.visio "". VML "=" Text/xml "". VPg "=" application/x-vpeg005 "". Vsd "=" Application/vnd.visio "". Vsd "=" application/ X-vsd "". vss "=" Application/vnd.visio "". vst "=" Application/vnd.visio "". vst "=" Application/x-vst "". Vsw "=" Application/vnd.visio "". Vsx "=" Application/vnd.visio "". vtx "=" Application/vnd.visio "". Vxml "=" Text/xml "". wav "=" Audio/wav "". Wax "=" audio/x-ms-wax "". Wb1 "=" application/x-wb1 "". Wb2 "=" application/x-wb2 "". Wb3 "=" application/x-wb3 " ". wbmp "=" Image/vnd.wap.wbmp "". Wiz "=" Application/msword "". Wk3 "=" Application/x-wk3 "". Wk4 "=" Application/x-wk4 "". Wkq "=" APPLICATION/X-WKQ "". Wks "=" Application/x-wks "". Wm "=" VIDEO/X-MS-WM "". wma "=" audio/x-ms-wma "". WMD "=" APPLICATION/X-MS-WMD "". Wmf "=" application/x-wmf "". WML "=" TEXT/VND.WAP.WML "". wmv "=" video/x-ms-wmv "". Wmx "=" video/ X-ms-wmx "". wmz "=" Application/x-ms-wmz "". Wp6 "=" Application/x-wp6 "". WPD "=" APPLICATION/X-WPD "". WPG "=" application/ X-WPG "". WPL "=" APPLICATION/VND.MS-WPL "". Wq1 "=" application/x-wq1 "". Wr1 "=" Application/x-wr1 "". Wri "=" application/ X-wri "". Wrk "=" Application/x-wrk "". ws "=" Application/x-ws "". Ws2 "=" Application/x-ws "". WSC "=" Text/scriptlet "". wsdl "=" Text/xml "". wvx "=" video/x-ms-wvx "". Xdp "=" APPLICATION/VND.ADOBE.XDP "". XDR "=" Text/xml "". XfD "=" application/ Vnd.adobe.xfd "". Xfdf "=" application/vnd.adobe.xfdf "". xhtml "=" text/html "". xls "=" application/vnd.ms-excel "". xls "= "Application/x-xls" ". xlw" = "APPLICATION/X-XLW" ". xml" = "Text/xml" ". xPL" = "Audio/scpls" ". Xq" = "Text/xml"". Xql" = "Text/xml" ". XQuery" = "Text/xml" ". xsd" = "text/xml" ". xsl" = "Text/xml" ". xslt" = "text/xml". Xwd "=" application/ X-xwd "". X_b "=" Application/x-x_b "". x_t "=" application/x-x_t "

Common HTTP ContentType settings for AJAX applications