Javascript cannot parsing JSON if the data contains some URL

Question

I have a valid JSON:

{"name":"tono","html":"<p><a href=\"http:\/\/someurl.com\">Here<\/a> is the link<\/p>"}

But, when I parse it through javascript (I use firefox's console)

JSON.parse('{"name":"tono","html":"<p><a href=\"http:\/\/someurl.com\">Here<\/a> is the link<\/p>"}');

I get this error

SyntaxError: JSON.parse: expected ',' or '}' after property value in object at line 1 column 36 of the JSON data

Is it an expected behavior? And how to parse JSON which contains URL correctly?

Just for additional information, this one works:

JSON.parse('{"name":"tono","html":"<p><a href=>Here<\/a> is the link<\/p>"}');

Object { name: "tono", html: "<p><a href=>Here</a> is the link</p>" }

More additional information:

The JSON parsed flawlessly here: http://jsonviewer.stack.hu

@Barmar Thanks for that. It's an edge case, certainly, but worth knowing about. — David Conrad
– David Conrad, Commented Oct 5, 2015 at 22:20

Community · Accepted Answer · 2017-05-23 12:14:31Z

3

Escape the backslashes in a string literal so they'll be treated literally.

console.log(JSON.parse('{"name":"tono","html":"<p><a href=\\"http:\\/\\/someurl.com\\">Here<\\/a> is the link<\\/p>"}'));

The reason why the forward slashes are escaped is explained here JSON: why are forward slashes escaped?

edited May 23, 2017 at 12:14

CommunityBot

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answered Oct 5, 2015 at 22:13

Barmar

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2 Comments

Barmar Over a year ago

I updated the answer to add a link to the reason for the redundant escapes

goFrendiAsgard Over a year ago

It may be redundant, but it works :) And the URL is worth to read.

lksmth · Accepted Answer · 2015-10-05 22:22:51Z

-2

As Barmar explained, you can escape the backslashes like such.

JSON.parse('{"name":"tono","html":"<p><a href=\\"http://someurl.com\\">Here</a> is the link</p>"}');

edited Oct 5, 2015 at 22:22

answered Oct 5, 2015 at 22:14

lksmth

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3 Comments

I wrestled a bear once. Over a year ago

barmar explained it, so why are you?

I wrestled a bear once. Over a year ago

Look: jsfiddle.net/yjedwLws you will see what's wrong. it completey messes up the url.

zerkms Over a year ago

@Pamblam I don't see anything wrong with the output. Are you sure you understand what JSON.stringify does?

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