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Issue created by Peter Krautzberger@pkraContributor

[3.1.3] liteAdaptor does not close SVG path elements

E.g., using https://github.com/mathjax/MathJax-demos-node/blob/master/direct/tex2svg-page and

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Hello</title>
</head>
<body>
\(\alpha\)
</body>
</html>

the result ends with

...
<svg style="display: none" id="MJX-SVG-global-cache"><defs><path id="MJX-TEX-I-1D6FC" d="M34 156Q34 270 120 356T309 442Q379 442 421 402T478 304Q484 275 485 237V208Q534 282 560 374Q564 388 566 390T582 393Q603 393 603 385Q603 376 594 346T558 261T497 161L486 147L487 123Q489 67 495 47T514 26Q528 28 540 37T557 60Q559 67 562 68T577 70Q597 70 597 62Q597 56 591 43Q579 19 556 5T512 -10H505Q438 -10 414 62L411 69L400 61Q390 53 370 41T325 18T267 -2T203 -11Q124 -11 79 39T34 156ZM208 26Q257 26 306 47T379 90L403 112Q401 255 396 290Q382 405 304 405Q235 405 183 332Q156 292 139 224T121 120Q121 71 146 49T208 26Z"></defs></svg>
</body>

Note that the path element is not closed.

When there are many (many) paths (e.g., the test file for mathjax-unicode-math), WebKit won't render the paths and Blink even crashes.