JSON Response Formatter [enhancement]

[voidstate]

Please add formatting/syntax highlighting for JSON responses. Currently the preview tab says: "Unable to preview this content type."

I have used HighlightJS before and can recommend it: https://highlightjs.org/

[set-killer]

Currently the preview tab says: "Unable to preview this content type."

That is because your http server does not set the correct content type header.
If you are using php you should add:

header("Content-type: application/json");

before the print of the json string.

[voidstate]

Thanks for the reply but that header is already set.

[set-killer]

Ah, yea. You should try the newest version from git. If you downloaded this extension from the mozilla's site - its not the newest version and this feature is not implemented there.

[dl748]

I had the same problem, unfortunately, even the master has no support for JSON in the preview window, only if the type is text. I added some code to readyStateChange function

else if( contentType.substring(0, 16) == 'application/json' )
response['preview'] = 'data:' + contentType + ',' + encodeURIComponent(JSON.stringify(JSON.parse(request.response),null,2));

after the response['preview']. Its a ROUGH pretty print, as it doesn't have syntax highlighting.

[lguariento]

Hello,

the version on the Mozilla website is still the 2015's one, and this add-on is still not able to visualise json format. I have compiled the sources and generated the xpi, which I cannot install because it is not signed by Mozilla (yes, even toggling the xpinstall.signatures.required on the about:config). Any suggestions?