Running the gulp uncss command with regex to ignore specific elements is not functioning as expected

I have been attempting to integrate uncss into my gulp workflow.

In order to exclude certain classes, such as those added through javascript, I am specifying these classes with "ignore" (specifically, I am trying to remove the css from the jquery plugin magnific-popup).

My workflow follows this structure and utilizes regex to target all magnific-popup css:

gulp.task("uncsstask", () => {
gulp.src('original-mfp.css')    
.pipe(uncss({
    html:
    [
        'page.html',
    ],
    ignore: [            
        /\.mfp-*.*/g,
    ]
}))
.pipe(gulp.dest('new'));
});

What is occurring is that the class

.mfp-container

is being included in the new css file, while the class

.mfp-content

is not.

I have verified the accuracy of the regex statement using multiple regex validators.

Answer №1

Ensure to include the 'm' flag in your regular expression (regex) pattern to continue matching after the first occurrence:

    /\.mfp-*.*/gm,

Questioning the necessity of the asterisk (*) after ".mfp". Is it possible for there to be zero dashes or more than one dash following ".mfp"?

[EDIT] : Upon further examination of the documentation, it was revealed that no specific regex flag is required. The original poster (OP) confirmed that removing the unnecessary * fixed the issue addressed along with my other suggestion. Therefore, update your regex pattern to:

/\.mfp-.*/

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