webrepl: send Content-Type text/html for index.

allisonkarlitskaya · allisonkarlitskaya · commit 40bd13f34699 · 2026-01-21T19:54:41.000+01:00
If we don't do this then Firefox incorrectly guesses text/plain and
just shows the source.  Adding the Content-Type: fixes the issue.

Signed-off-by: Allison Karlitskaya &lt;allison.karlitskaya@redhat.com&gt;
diff --git a/micropython/net/webrepl/webrepl.py b/micropython/net/webrepl/webrepl.py
@@ -78,6 +78,7 @@ def send_html(cl):
     cl.send(
         b"""\
 HTTP/1.0 200 OK\r
+Content-Type: text/html\r
 \r
 <base href=\""""
     )

Original file line number	Diff line number	Diff line change
`@@ -78,6 +78,7 @@ def send_html(cl):`
`78`	`78`	`cl.send(`
`79`	`79`	`b"""\`
`80`	`80`	`HTTP/1.0 200 OK\r`
	`81`	`+Content-Type: text/html\r`
`81`	`82`	`\r`
`82`	`83`	`<base href=\""""`
`83`	`84`	`)`