Open Bug 1930223 Opened 2 years ago

Investigate setting viewport `<meta>` tag for Android test runs

Categories

(Testing :: Mochitest, enhancement)

Product:
Testing
Component:
Mochitest
Type:
enhancement

Tracking

(Not tracked)

People

(Reporter: dshin, Unassigned)

Details

Based on Bug 1768921 Comment 14 - Without meta viewport tag specified (e.g. <meta name="viewport" content="width=device-width, initial-scale=1" />), we end up rendering the document and then scaling it down to viewport size - this introduces rounding errors that need to be papered over.

A quick test of adding to the harness Javascript seems to make the fix test failure in question:

         TITLE("MochiTest | ", metadata.path),
+        META({
+          name: "viewport",
+          content: "width=device-width, initial-scale=1",
+        }),
         LINK({

However this affects every mochitest, hence why it's spun out here.

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