Razor corrupts '<% %>' snippets (3.0.100)

[AlekseyMartynov]

We use a JavaScript template engine with 'percent tags'. In Razor files, these snippets are corrupted.

Example:

<script type="text/html">
    <% if (value == 0) { %>
        <div><%= value %></div>
    <% } %>
</script>

<template>
    <% if (value == 0) { %>
        <div><%= value %></div>
    <% } %>
</template>

<text>
    <% if (value == 0) { %>
        <div><%= value %></div>
    <% } %>
</text>

is rendered as

<script type="text/html">
    <% if (value =>
        <div><%= value %></div>
    <% } %>
</script>

<template>
    <% if (value =>
        <div><%= value %></div>
    <% } %>
</template>

<text>
    <% if (value =>
        <div><%= value %></div>
    <% } %>
</text>

Note how <% if lines are truncated.

Further technical details

.NET Core SDK (reflecting any global.json):
 Version:   3.0.100
 Commit:    04339c3a26

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.18362
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\3.0.100\

[javiercn]

@AlekseyMartynov thanks for contacting us.

@ajaybhargavb can you take a look?

[NTaylorMullen]

@allisonchou this one is Razor compiler related

[allisonchou]

Transferring back to aspnetcore repo

[ghost]

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.

[mkArtakMSFT]

Thank you for filing this issue. In order for us to investigate this issue, please provide a minimalistic repro project (ideally a GitHub repo) that illustrates the problem.

[AlekseyMartynov]

Hello @mkArtakMSFT

Thank you for the update. I checked the issue against the current versions. It is not reproduced with .NET Core 3.1 and .NET 5. The bug was specific to 3.0.x which has reached end of support.

I'm closing the ticket.