can not preserve comments rightly about gulp-uglify HOT 9 CLOSED

I have been having the same issue. I made it work by specifying the comments options manually

.pipe(uglify({output: {comments: /^!|@preserve|@license|@cc_on/i}}))

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@ShiJinYu If you swap the order of the "origin" and "do not delete" comments, does it work?

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No, it doesn't work.
I just want to put the HTML template code in a javascript file,in the form of js comment.But Uglify looks does not correctly identify it.
In addition,if I set the value of preserveComments as 'all',all comments would be preserved but the comment as this form:

String(function(){
    /*! I will be deleted in any case
    <div class="foo">{{bar}}</div>
    */
    })

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I'm also experiencing the same issue. I can't get any values of preserveComments to work besides none.

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What a pity! It is really a very strange requirement what I had encountered.

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This might be a regression in how uglifyjs handles preserving comments.
None of the code in this project has changed, and our tests still pass.

I'll look when I return from vacation next week. ✨
On Feb 27, 2015 2:34 AM, "Shijinyu" [email protected] wrote:

What a pity! It does be a very strange requirement what I had encountered.

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#82 (comment)
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I'm very much obliged to you,enjoying your time.

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I've just confirmed the proper option is being generated and passed to UglifyJS correctly. Can you reproduce the behavior calling their binary directly?

Also, I note the following from the --help screen:

Note that currently not *all* comments can be kept when
compression is on, because of dead code removal or
cascading statements into sequences. 

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UglifyJS code is too complicated for me, I will try later but I'm not sure if I can reproduce. Thank you so much for making nothing of hardships to find out way and discuss this issue with me.

Go to bed early please. :-)

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