PrismJS no line breaks

Question

Not sure if anyone has come across this. I'm using PrismJS syntax highlighter to highlight code. Application is written in Reactjs and what I'm trying to do is inside a WYSIWYG editor I'm wrapping user selected text with pre + code when user wants to insert code block. PrismJS seems to tokenize elements correctly as you would expect:

But as you can probably see from the image above, everything is put into a single line. Rather then nice code block:

I'm not sure what's wrong, using css from prismjs site:

code[class*="language-"],
pre[class*="language-"] {
    color: black;
    background: none;
    text-shadow: 0 1px white;
    font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
    text-align: left;
    white-space: pre;
    word-spacing: normal;
    word-break: normal;
    word-wrap: normal;
    line-height: 1.5;

    -moz-tab-size: 4;
    -o-tab-size: 4;
    tab-size: 4;

    -webkit-hyphens: none;
    -moz-hyphens: none;
    -ms-hyphens: none;
    hyphens: none;
}

pre[class*="language-"]::-moz-selection,
pre[class*="language-"] ::-moz-selection,
code[class*="language-"]::-moz-selection,
code[class*="language-"] ::-moz-selection {
    text-shadow: none;
    background: #b3d4fc;
}

pre[class*="language-"]::selection,
pre[class*="language-"] ::selection,
code[class*="language-"]::selection,
code[class*="language-"] ::selection {
    text-shadow: none;
    background: #b3d4fc;
}

@media print {
    code[class*="language-"],
    pre[class*="language-"] {
        text-shadow: none;
    }
}

/* Code blocks */
pre[class*="language-"] {
    padding: 1em;
    margin: .5em 0;
    overflow: auto;
}

:not(pre) > code[class*="language-"],
pre[class*="language-"] {
    background: #f5f2f0;
}

/* Inline code */
:not(pre) > code[class*="language-"] {
    padding: .1em;
    border-radius: .3em;
    white-space: normal;
}

.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
    color: slategray;
}

.token.punctuation {
    color: #999;
}

.namespace {
    opacity: .7;
}

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted {
    color: #905;
}

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
    color: #690;
}

.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string {
    color: #9a6e3a;
    background: hsla(0, 0%, 100%, .5);
}

.token.atrule,
.token.attr-value,
.token.keyword {
    color: #07a;
}

.token.function,
.token.class-name {
    color: #dd4a68;
}

.token.regex,
.token.important,
.token.variable {
    color: #e90;
}

.token.important,
.token.bold {
    font-weight: bold;
}
.token.italic {
    font-style: italic;
}

.token.entity {
    cursor: help;
}

Here is outputted html:

EDIT:

If adding word-wrap: pre-wrap this is the outcome:

Answer 1

Try to update the CSS file with:

white-space: pre-wrap

https://github.com/PrismJS/prism/issues/1237